Animals / Wildlife: Most Popular Articles
These articles are the most popular over the last month.
Animal Profiles - A to Z List
The following is an A to Z list of animal profiles available, sorted alphabetically by scientific name.
The following is an A to Z list of animal profiles available, sorted alphabetically by scientific name.
Ten Facts About Owls
Owls are a group of birds known for their distinct calls, nocturnal habits, and silent flight. Owls are familiar to many people because they are often depected in various ways in popular culture.
Owls are a group of birds known for their distinct calls, nocturnal habits, and silent flight. Owls are familiar to many people because they are often depected in various ways in popular culture.
Characteristics of Cnidarians
Cnidarians are diverse and come in many shapes and sizes but there are some basic features of their anatomy that most share in common.
Cnidarians are diverse and come in many shapes and sizes but there are some basic features of their anatomy that most share in common.
How Large Do Snails Grow?
Snails grow to a variety of different sizes depending on the species and individual.
Snails grow to a variety of different sizes depending on the species and individual.
Six Basic Animal Groups
If you're just starting to learn about animals and wildlife, it would be an overwhelming task to try and memorize species, one by one. Instead, an understanding of the main groups of animals provides a good foundation for further learning.
If you're just starting to learn about animals and wildlife, it would be an overwhelming task to try and memorize species, one by one. Instead, an understanding of the main groups of animals provides a good foundation for further learning.
Structure of a Snail Shell
A snail's shell is secreted by glands in its mantle rim and consists of three layers.
A snail's shell is secreted by glands in its mantle rim and consists of three layers.
Snail Classification
Snails are invertebrates, they lack a backbone. They belong to a large and highly diverse group of invertebrates known as the Phylum Mollusca (also known more commonly as 'mollusks'). The Phylum Mollusca includes slugs, clams, oysters, mussels, squids, octopuses, and nautiluses, in addition to snails.
Snails are invertebrates, they lack a backbone. They belong to a large and highly diverse group of invertebrates known as the Phylum Mollusca (also known more commonly as 'mollusks'). The Phylum Mollusca includes slugs, clams, oysters, mussels, squids, octopuses, and nautiluses, in addition to snails.
What Is an Animal?
What is an animal? It's a simple enough question, but the answer is complex and requires an understanding of some rather hefty scientific concepts and terms. Here we'll explore the basic characteristics that make an organism an animal and attempt to decipher the scientific jargon that surrounds these concepts.
What is an animal? It's a simple enough question, but the answer is complex and requires an understanding of some rather hefty scientific concepts and terms. Here we'll explore the basic characteristics that make an organism an animal and attempt to decipher the scientific jargon that surrounds these concepts.
Vertebrates and Invertebrates
Among the most fundamental criteria by which animals are sorted is whether or not they possess a backbone. This distinction places an animal into one of two groups: the vertebrates or the invertebrates.
Among the most fundamental criteria by which animals are sorted is whether or not they possess a backbone. This distinction places an animal into one of two groups: the vertebrates or the invertebrates.
Great Barrier Reef Animals
It wasn't until the mid-18th century that corals were recognized as animals, not, as previously thought, plants.
It wasn't until the mid-18th century that corals were recognized as animals, not, as previously thought, plants.
Animals - Kindom Animalia
Animals (Kindom Animalia) are multicellular organisms that are capable of locomotion and rely on other organisms to obtain their nourishment.
Animals (Kindom Animalia) are multicellular organisms that are capable of locomotion and rely on other organisms to obtain their nourishment.
How to Protect Wildlife
It is often easy to feel overwhelmed in the face of species loss and habitat destruction. The problem is large and complex—it's common for individuals to feel powerless. Yet, everything we do is vitally important. We may only do a little bit in the grand scheme of things, but together our seemingly small actions add up to a lot.
It is often easy to feel overwhelmed in the face of species loss and habitat destruction. The problem is large and complex—it's common for individuals to feel powerless. Yet, everything we do is vitally important. We may only do a little bit in the grand scheme of things, but together our seemingly small actions add up to a lot.
Ten Facts About Jellyfish
Jellyfish have a bad reputation for the threats they can pose to swimmers and holiday makers visiting beaches around the world. But there's more to jellyfish than a nasty sting. In this article we'll take a closer look at these unique creatures.
Jellyfish have a bad reputation for the threats they can pose to swimmers and holiday makers visiting beaches around the world. But there's more to jellyfish than a nasty sting. In this article we'll take a closer look at these unique creatures.
Birds (Aves)
Birds (Class Aves) are warm-blooded (endothermic) vertebrates. Birds have feathers covering their skin and their forelimbs are modified into wings.
Birds (Class Aves) are warm-blooded (endothermic) vertebrates. Birds have feathers covering their skin and their forelimbs are modified into wings.
Appalachian Mountains
The Appalachian Mountain Range is an ancient band of mountains that stretches in a southwestern arc from the Canadian province of Newfoundland to central Alabama, the heart of southeastern United States.
The Appalachian Mountain Range is an ancient band of mountains that stretches in a southwestern arc from the Canadian province of Newfoundland to central Alabama, the heart of southeastern United States.
Quiz: An Introduction to Zoology
Put your zoology knowledge to the test in this quiz.
Put your zoology knowledge to the test in this quiz.
Quiz: Biochemistry Basics
Put your biochemistry knowledge to the test in this quiz.
Put your biochemistry knowledge to the test in this quiz.
Mammals
Mammals (Class Mammalia) belong to a group of vertebrates that includes approximately 5,400 extant species. Mammals display a remarkable array of adaptations that enable them to inhabit a wide range of habitats. Mammals range in size from the minute Bumblebee Bat which measures a mere three centimeters in length, to the magnificent blue whale, which can grow to as much as 33 metres in length—at such an immense dimension, it is undoubtedly the largest animal alive today.
Mammals (Class Mammalia) belong to a group of vertebrates that includes approximately 5,400 extant species. Mammals display a remarkable array of adaptations that enable them to inhabit a wide range of habitats. Mammals range in size from the minute Bumblebee Bat which measures a mere three centimeters in length, to the magnificent blue whale, which can grow to as much as 33 metres in length—at such an immense dimension, it is undoubtedly the largest animal alive today.
Marine Fish
Well over one thousand species of marine fish inhabit the Great Barrier Reef.
Well over one thousand species of marine fish inhabit the Great Barrier Reef.
Animal Groups Quiz - Six Basic Animal Groups
Put your animal identification skills to the test in this quiz.
Put your animal identification skills to the test in this quiz.
Largest Mammals
The mammals listed here are the biggest and the bulkiest of their kind that inhabit our planet today. They include a surprisingly diverse cast of creatures—the cumbersome southern elephant seal, the majestic blue whale, the bounding European hare, the blunt-nosed capybara, the massive African elephant, and the wide-jawed hippopotamus to name a select few
The mammals listed here are the biggest and the bulkiest of their kind that inhabit our planet today. They include a surprisingly diverse cast of creatures—the cumbersome southern elephant seal, the majestic blue whale, the bounding European hare, the blunt-nosed capybara, the massive African elephant, and the wide-jawed hippopotamus to name a select few
Prokaryotes and Eukaryotes
All living organisms can be sorted into one of two groups depending on the fundamental structure of their cells. These two groups are the prokaryotes and the eukaryotes.
All living organisms can be sorted into one of two groups depending on the fundamental structure of their cells. These two groups are the prokaryotes and the eukaryotes.
Top 10 Conservation Groups
A personal inventory of the first ten organizations that come to mind when I donate my money to protect wildlife. There are many superb organizations, I'm certain this list could easily be lengthened. Still, if you're new to conservation or are looking for a well-established, reputable organization to join, this is a good starting point.
A personal inventory of the first ten organizations that come to mind when I donate my money to protect wildlife. There are many superb organizations, I'm certain this list could easily be lengthened. Still, if you're new to conservation or are looking for a well-established, reputable organization to join, this is a good starting point.
What Is a Niche?
The term niche is used to describe the role an organism or population plays within its community or ecosystem. It encompasses all relationships that the organism (or population) has with its environment and with other organisms and populations in its environment.
The term niche is used to describe the role an organism or population plays within its community or ecosystem. It encompasses all relationships that the organism (or population) has with its environment and with other organisms and populations in its environment.
9 Characteristics of Mammals
Mammals display a remarkable array of adaptations that enable them to inhabit a wide range of habitats. Some of their characteristics are shared by no other groups of animals: hair, mammary glands, three specialized middle-ear bones.
Mammals display a remarkable array of adaptations that enable them to inhabit a wide range of habitats. Some of their characteristics are shared by no other groups of animals: hair, mammary glands, three specialized middle-ear bones.
Arctic Wolf
The Arctic wolf (Canis lupus arctos) is a subspecies of the Grey wolf (Canis lupus). Adult Arctic wolves are between 25 and 31 inches in height (measured at shoulder) and reach weights of up to 175 pounds. Females tend to be smaller and lighter than males. They measure between 3 and 5 feet from head to tail. Their thick coat is off-white.
The Arctic wolf (Canis lupus arctos) is a subspecies of the Grey wolf (Canis lupus). Adult Arctic wolves are between 25 and 31 inches in height (measured at shoulder) and reach weights of up to 175 pounds. Females tend to be smaller and lighter than males. They measure between 3 and 5 feet from head to tail. Their thick coat is off-white.
Ten Facts About Zebras
Zebras, with their familiar horse-like physique and their distinct black and white striping pattern, are among the most recognizable of all mammals. We learn at an early age to distinguish zebras from other animals (when learning the alphabet, youngsters are often shown a picture of a zebra and are taught 'Z is for Zebra').
Zebras, with their familiar horse-like physique and their distinct black and white striping pattern, are among the most recognizable of all mammals. We learn at an early age to distinguish zebras from other animals (when learning the alphabet, youngsters are often shown a picture of a zebra and are taught 'Z is for Zebra').
Chordates
The unifying characteristic of chordates (Phylum Chordata) is the presense of a notochord (an internal skeletal rod that provides support) during some stage of the animal's development.
The unifying characteristic of chordates (Phylum Chordata) is the presense of a notochord (an internal skeletal rod that provides support) during some stage of the animal's development.
Density Independent
A factor that influences individuals in a population in a manner that does not vary with the extent of crowding present in the population.
A factor that influences individuals in a population in a manner that does not vary with the extent of crowding present in the population.
Characteristics of Birds
Birds are an amazing and diverse group of animals. Birds, best known for their ability to fly, are unmatched in their command of the skies. Albatrosses glide long distances over the open sea, hummingbirds can hover motionless in mid-air, and eagles are highly effective aerial predators.
Birds are an amazing and diverse group of animals. Birds, best known for their ability to fly, are unmatched in their command of the skies. Albatrosses glide long distances over the open sea, hummingbirds can hover motionless in mid-air, and eagles are highly effective aerial predators.
Vertebrate Evolution
Vertebrates are a well-known group of animals that includes mammals, birds, reptiles, amphibians, and fish. The defining characteristic of vertebrates is their backbone, a trait that showed up in the fossil record about 500 million years ago during the Ordovician period.
Vertebrates are a well-known group of animals that includes mammals, birds, reptiles, amphibians, and fish. The defining characteristic of vertebrates is their backbone, a trait that showed up in the fossil record about 500 million years ago during the Ordovician period.
Arthropods
The Phylum Arthropoda includes insects, spiders, crustaceans, scorpions, and centipedes. Arthropods are bilaterally symmetrical and have segmented bodies. Their body is covered with an exoskeleton and many arthropods have compound eyes.
The Phylum Arthropoda includes insects, spiders, crustaceans, scorpions, and centipedes. Arthropods are bilaterally symmetrical and have segmented bodies. Their body is covered with an exoskeleton and many arthropods have compound eyes.
Amphibians
Amphibians (Class Amphibia) include fascinating creatures such as salamanders, newts, caecilians, frogs, and toads. These animals' ancestors were the first to venture out from the water and adapt to life on land. Amphibian larvea are often aquatic and go through a complex metamorphosis process as they grow to adulthood. They have moist skin and do not have scales, feathers or hair.
Amphibians (Class Amphibia) include fascinating creatures such as salamanders, newts, caecilians, frogs, and toads. These animals' ancestors were the first to venture out from the water and adapt to life on land. Amphibian larvea are often aquatic and go through a complex metamorphosis process as they grow to adulthood. They have moist skin and do not have scales, feathers or hair.
Ten Facts About Dolphins
Dolphins are well known for their intellect, their gregarious nature, and their acrobatic abilities. But there are many lesser known qualities that makes a dolphin what it is. Here we'll explore ten characteristics of dolphins and learn more about these much-loved marine mammals.
Dolphins are well known for their intellect, their gregarious nature, and their acrobatic abilities. But there are many lesser known qualities that makes a dolphin what it is. Here we'll explore ten characteristics of dolphins and learn more about these much-loved marine mammals.
Life Cycle of a Jellyfish
The most recognized image of a jellyfish is that of the adult jellyfish, with its bell-shaped body and long tentacles.
The most recognized image of a jellyfish is that of the adult jellyfish, with its bell-shaped body and long tentacles.
True Jellyfish
Jellyfish belong to the Class Scyphozoa. Jellyfish are delicate, soft-bodied animals. They are invertebrates--jellyfish have no bones, exoskeleton, or shell to protect or support them.
Jellyfish belong to the Class Scyphozoa. Jellyfish are delicate, soft-bodied animals. They are invertebrates--jellyfish have no bones, exoskeleton, or shell to protect or support them.
What Is Sexual Dimorphism?
Sexual dimorphism is the difference in form between male and female members of the same species.
Sexual dimorphism is the difference in form between male and female members of the same species.
Sir David Attenborough and Wandering Albatross Chick
The Royal Society for the Protection of Birds (RSPB) and BirdLife International have joined together to create the Save the Albatross initiative that focuses on albatross protection and conservation. Their aim is to address the problem posed by longline fishing:
The Royal Society for the Protection of Birds (RSPB) and BirdLife International have joined together to create the Save the Albatross initiative that focuses on albatross protection and conservation. Their aim is to address the problem posed by longline fishing:
Great Barrier Reef Climate
The Great Barrier Reef is the world's largest tropical reef system, covering an area of 348,000 km2 and stretching along 2300km of the eastern Australian coastline.
The Great Barrier Reef is the world's largest tropical reef system, covering an area of 348,000 km2 and stretching along 2300km of the eastern Australian coastline.
Blue-footed Booby - Sula nebouxii
The blue-footed booby (Sula nebouxii) is an adorable seabird with bright seafoam-blue webbed feet and a blue-gray face to match.
The blue-footed booby (Sula nebouxii) is an adorable seabird with bright seafoam-blue webbed feet and a blue-gray face to match.
Reproduction in Snails
Most terrestrial snails are hermaphroditic which means that each individual possesses both male and female reproductive organs.
Most terrestrial snails are hermaphroditic which means that each individual possesses both male and female reproductive organs.
What Is a Keystone Species?
A keystone species is a species that plays a critical role in maintaining the structure of an ecological community and whose impact on the community is greater than would be expected based on its relative abundance or total biomass.
A keystone species is a species that plays a critical role in maintaining the structure of an ecological community and whose impact on the community is greater than would be expected based on its relative abundance or total biomass.
Predators of the Reef
Predators on the reef come in many shapes and sizes. Sharks are the iconic reef predator and species that visit the reef include tiger sharks, black-tipped reef sharks, and white-tipped reef sharks.
Predators on the reef come in many shapes and sizes. Sharks are the iconic reef predator and species that visit the reef include tiger sharks, black-tipped reef sharks, and white-tipped reef sharks.
Density Dependent
Describes a factor that influences individuals in a population to a degree that varies in response to how crowded (dense) the population is.
Describes a factor that influences individuals in a population to a degree that varies in response to how crowded (dense) the population is.
What Is a Rain Shadow?
A rain shadow is an area of dry land that lies on the leeward (or downwind) side of a mountain. Winds carry air masses up and over the mountain range and as the air is driven upward over the mountain, falling temperatures cause the air to lose much of its moisture as precipitation.
A rain shadow is an area of dry land that lies on the leeward (or downwind) side of a mountain. Winds carry air masses up and over the mountain range and as the air is driven upward over the mountain, falling temperatures cause the air to lose much of its moisture as precipitation.
An Introduction to Mammals
Learn more about mammals including, their characteristics, evolution, adaptations, and more. Mammals, as a group of animals, belong to the Class Mammalia. The Class Mammalia, in turn, belongs to the larger group known as the vertebrates (animals with backbones; also called the Phylum Chordata).
Learn more about mammals including, their characteristics, evolution, adaptations, and more. Mammals, as a group of animals, belong to the Class Mammalia. The Class Mammalia, in turn, belongs to the larger group known as the vertebrates (animals with backbones; also called the Phylum Chordata).
Mammal Groups Quiz - Basic Mammal Groups
Put your animal identification skills to the test in this quiz.
Put your animal identification skills to the test in this quiz.
North and South American Cats
Pumas, also known as mountain lions, catamonts, panthers or cougars, are a large cat whose former range extended from coast to coast across North America. By 1960, they were declared extinct in most midwestern and eastern ranges.
Pumas, also known as mountain lions, catamonts, panthers or cougars, are a large cat whose former range extended from coast to coast across North America. By 1960, they were declared extinct in most midwestern and eastern ranges.
Sponges and Echinoderms
Sponges belong to the Phylum Porifera. Sponges occur in almost every type of aquatic habitats but are most common in the marine habitats.
Sponges belong to the Phylum Porifera. Sponges occur in almost every type of aquatic habitats but are most common in the marine habitats.
Amphibian and Reptile ID Tips
Through a series of steps, this identification key will help you to learn the basics of identifying the main families of reptiles and amphibians.
Through a series of steps, this identification key will help you to learn the basics of identifying the main families of reptiles and amphibians.
Endangered Species
An animal or plant species in danger of extinction throughout all or a significant portion of its range.
An animal or plant species in danger of extinction throughout all or a significant portion of its range.
Molluscs
Molluscs (Mollusca) are a highly diverse group of animals that include cephalopods (squid, octopuses, cuttlefish), gastropods (nudibranchs, snails, slugs, limpets, sea hares), bivalves (mussels, clams, oysters, scallops) and many other groups of organisms.
Molluscs (Mollusca) are a highly diverse group of animals that include cephalopods (squid, octopuses, cuttlefish), gastropods (nudibranchs, snails, slugs, limpets, sea hares), bivalves (mussels, clams, oysters, scallops) and many other groups of organisms.
Giant Panda
Giant pandas (Ailuropoda melanoleuca) belong to the bear family (Ursidae). They have distinct black and white coloration.
Giant pandas (Ailuropoda melanoleuca) belong to the bear family (Ursidae). They have distinct black and white coloration.
Carnivores
Carnivores are animals belonging to the order Carnivora. The order Carnivora contains 7 families and about 250 species. This group of animals includes dogs and their relatives, bears, racoons, mustelids, civits, hyenas, aardwolf, and cats.
Carnivores are animals belonging to the order Carnivora. The order Carnivora contains 7 families and about 250 species. This group of animals includes dogs and their relatives, bears, racoons, mustelids, civits, hyenas, aardwolf, and cats.
Cats
Cats inhabit a wide variety of habitats including coasts, deserts, forests, grasslands, and mountains. They have colonized almost every corner of the globe with the exceptions of Australia, Greenland, Iceland, New Zealand, Antarctica, Madagascar, and remote oceanic islands.
Cats inhabit a wide variety of habitats including coasts, deserts, forests, grasslands, and mountains. They have colonized almost every corner of the globe with the exceptions of Australia, Greenland, Iceland, New Zealand, Antarctica, Madagascar, and remote oceanic islands.
How Animals are Classified
For centuries, the naming and classification of living organisms into groups has been an integral part of the study of nature.
For centuries, the naming and classification of living organisms into groups has been an integral part of the study of nature.
Organ Systems and What They Do
Animals' bodies are made up of various organ systems, groups of organs that work together to perform a function.
Animals' bodies are made up of various organ systems, groups of organs that work together to perform a function.
The 7 Big Cat Species
Today, there are only seven species of big cats that survived from what was once a diverse group of large felid carnivores. These seven living species are classified into three groups that include the Panthera, Felis, and Acinonyx.
Today, there are only seven species of big cats that survived from what was once a diverse group of large felid carnivores. These seven living species are classified into three groups that include the Panthera, Felis, and Acinonyx.
African Elephant
The African elephant is the largest living land mammal. Adults grow to heights of 13 to 16 feet and weights of 4 to 7 tons. The African elephant has larger ears than the Asian elephant and its two front incisors grow into large tusks that curve forward.
The African elephant is the largest living land mammal. Adults grow to heights of 13 to 16 feet and weights of 4 to 7 tons. The African elephant has larger ears than the Asian elephant and its two front incisors grow into large tusks that curve forward.
An Introduction to Horses
Horses and their relatives, known collectively as equids, are beautiful, captivating mammals. They posess grace, speed, and endurance.
Horses and their relatives, known collectively as equids, are beautiful, captivating mammals. They posess grace, speed, and endurance.
How Do Tides and Waves Work?
Waves give rhythm to the ocean. They transport energy over vast distances. Where they make landfall, waves help to sculpt a unique and dynamic mosaic of coastal habitats.
Waves give rhythm to the ocean. They transport energy over vast distances. Where they make landfall, waves help to sculpt a unique and dynamic mosaic of coastal habitats.
Wild Side of Animal Senses
Radar, compasses, and infrared detectors are all man-made contraptions that enable humans to stretch beyond our natural senses.
Radar, compasses, and infrared detectors are all man-made contraptions that enable humans to stretch beyond our natural senses.
Rocky Mountains
The Rocky Mountains stretch through western North America from Alaska to New Mexico, forming the middle section of the Western Cordillera, an extensive belt of mountains that reaches from the Arctic Circle to Mexico.
The Rocky Mountains stretch through western North America from Alaska to New Mexico, forming the middle section of the Western Cordillera, an extensive belt of mountains that reaches from the Arctic Circle to Mexico.
Polar Bear
The polar bear (Ursus maritimus) is among the largest land carnivores, comparable in size only to the brown bear. Polar bears weigh in the range of 400kg-680kg (880lb-1500lb) and are 2.1m-3.3m (7ft-11ft) in length.
The polar bear (Ursus maritimus) is among the largest land carnivores, comparable in size only to the brown bear. Polar bears weigh in the range of 400kg-680kg (880lb-1500lb) and are 2.1m-3.3m (7ft-11ft) in length.
Population Growth
Populations are groups of individuals belonging to the same species that live in a shared region at the same time.
Populations are groups of individuals belonging to the same species that live in a shared region at the same time.
Snail Life Cycle / Development
Snails start life as an egg. Snails bury their eggs in a nest a few centimeters below the surface of the ground.
Snails start life as an egg. Snails bury their eggs in a nest a few centimeters below the surface of the ground.
Snail Anatomy
Snails are very different from humans so when we think about body parts, we're often at a loss when relating the familiar parts of a human body to snails.
Snails are very different from humans so when we think about body parts, we're often at a loss when relating the familiar parts of a human body to snails.
Reptiles
Reptiles (Reptilia) includes turtles, snakes, lizards, worm lizards, crocodiles, alligators, caimans, and gavials.
Reptiles (Reptilia) includes turtles, snakes, lizards, worm lizards, crocodiles, alligators, caimans, and gavials.
Lion and Tiger Subspecies
There are numerous lion subspecies and there is disagreement among experts as to which subspecies are recognized.
There are numerous lion subspecies and there is disagreement among experts as to which subspecies are recognized.
Whooping-Crane (Grus americana)
Conservation organizations from around the world have joined together to create the Alliance for Zero Extinction, an initiative that focuses on preventing extinctions by identifying and protecting key sites that are the last remaining habitat for one or more endangered species.
Conservation organizations from around the world have joined together to create the Alliance for Zero Extinction, an initiative that focuses on preventing extinctions by identifying and protecting key sites that are the last remaining habitat for one or more endangered species.
Ten Facts About Octopi
From clouds of ink to chromatophores, there's more to octopi than eight arms.
From clouds of ink to chromatophores, there's more to octopi than eight arms.
Snail Diet and Feeding Habits
Most terrestrial snails are herbivorous. They feed on plant material (such as leaves, stems, and soft bark), fruits, and algae. A few species of snails are scavengers, feeding on decaying animals. Some marine snails (which, keep in mind, aren't in the same group as terrestrial snails) feed on clams, fish, worms and mollusks.
Most terrestrial snails are herbivorous. They feed on plant material (such as leaves, stems, and soft bark), fruits, and algae. A few species of snails are scavengers, feeding on decaying animals. Some marine snails (which, keep in mind, aren't in the same group as terrestrial snails) feed on clams, fish, worms and mollusks.
Animals and Their Environment
A first step to understanding individual animals, and in turn populations of animals, is to understand the relationship they have with their environment.
A first step to understanding individual animals, and in turn populations of animals, is to understand the relationship they have with their environment.
Cats of Africa - Caracal, Serval, Cheetah, Leopards, and Lions
The cats of Africa include the caracal, serval, cheetah, lion, and leopard.
The cats of Africa include the caracal, serval, cheetah, lion, and leopard.
Classification of Cats
Cats belong to the group of vertebrates known as mammals. Within the mammals cats are classified with other meat eaters in the Order Carnivora (known commonly as 'carnivores').
Cats belong to the group of vertebrates known as mammals. Within the mammals cats are classified with other meat eaters in the Order Carnivora (known commonly as 'carnivores').
Protecting Wildlife
If you are interested in getting involved in wildlife conservation, be sure to take a closer look this list of organizations.
If you are interested in getting involved in wildlife conservation, be sure to take a closer look this list of organizations.
Leopard
The leopard (Panthera pardus) is a member of the cat family (Felidae). The leopard's coat has a background color of pale, cream-yellow on its underside that darkens slightly to an orange-brown on its back.
The leopard (Panthera pardus) is a member of the cat family (Felidae). The leopard's coat has a background color of pale, cream-yellow on its underside that darkens slightly to an orange-brown on its back.
The Working Zoologist
Do you ever wonder how to employ your love of animals and wildlife? Here are some professions to consider.
Do you ever wonder how to employ your love of animals and wildlife? Here are some professions to consider.
Brief History of Life on Earth
It all began 4500 million years ago (Mya) with the Hadean Eon. That's when our solar system formed and, in that solar system, a molten Earth started to cool and take shape. Because there was no solid rock back then, we don't have a geological history of the Hadeon Eon. As soon as the Earth cooled and solid rock formed, that's when geological history began and the Hadeon Eon ended.
It all began 4500 million years ago (Mya) with the Hadean Eon. That's when our solar system formed and, in that solar system, a molten Earth started to cool and take shape. Because there was no solid rock back then, we don't have a geological history of the Hadeon Eon. As soon as the Earth cooled and solid rock formed, that's when geological history began and the Hadeon Eon ended.
Giraffe
Giraffes (Giraffa camelopardalis) are hoofed mammals with long legs and a long neck. Their skin is a patchwork of dark chestnut spots separated by thin cream colored lines.
Giraffes (Giraffa camelopardalis) are hoofed mammals with long legs and a long neck. Their skin is a patchwork of dark chestnut spots separated by thin cream colored lines.
Vestigal
A part of an animal that is no longer used and is, from an evolutionary perspective, in the process of being lost. Vestigal structures are often small and imperfectly formed—they usually serve little function or are no longer used by the organism.
A part of an animal that is no longer used and is, from an evolutionary perspective, in the process of being lost. Vestigal structures are often small and imperfectly formed—they usually serve little function or are no longer used by the organism.
Pentaradial Symmetry
A type of radial symmetry, characteristic of echinoderms, in which body parts are arranged along five rays of symmetry.
A type of radial symmetry, characteristic of echinoderms, in which body parts are arranged along five rays of symmetry.
London's Peppered Moths
Read about H.B.D. Kettlewell, an English physician with an interest in butterfly and moth collecting, who in the 1950's decided to study the unexplained color variations of the peppered moth.
Read about H.B.D. Kettlewell, an English physician with an interest in butterfly and moth collecting, who in the 1950's decided to study the unexplained color variations of the peppered moth.
Ten Facts About Fishes
Fishes are a highly diverse group of vertebrates. They include the cartilaginous fishes (sharks, skates, rays, chimera), the ray-finned fishes (paddlefishes, spoonfishes, pipefishes, seahorses, sturgeons, to name just a few), and the lobe-finned fishes (coelacanths and lungfishes).
Fishes are a highly diverse group of vertebrates. They include the cartilaginous fishes (sharks, skates, rays, chimera), the ray-finned fishes (paddlefishes, spoonfishes, pipefishes, seahorses, sturgeons, to name just a few), and the lobe-finned fishes (coelacanths and lungfishes).
Ten Facts About Coral
If you've ever visited an aquarium or gone snorkeling when on holiday, you're probably familiar with a wide variety of corals. You may even know that corals play a fundamental role in defining the structure of marine reefs, the most complex and diverse ecosystems in our planet's oceans.
If you've ever visited an aquarium or gone snorkeling when on holiday, you're probably familiar with a wide variety of corals. You may even know that corals play a fundamental role in defining the structure of marine reefs, the most complex and diverse ecosystems in our planet's oceans.
Cnidaria
Cnidarians (Phylum Cnidaria) are a group of aquatic animals that includes jellyfish, corals, sea anemones, and hydras.
Cnidarians (Phylum Cnidaria) are a group of aquatic animals that includes jellyfish, corals, sea anemones, and hydras.
California Sea Hare
The California Sea Hare (Aplysia californica) is among the world's largest gastropods and grows to lengths of 41cm (16in). It has ruffled flaps along its back and two pairs of antennae.
The California Sea Hare (Aplysia californica) is among the world's largest gastropods and grows to lengths of 41cm (16in). It has ruffled flaps along its back and two pairs of antennae.
Character Displacement
The divergence of adaptations or other characteristics in two similar species in locations where the animals share habitat. This divergence is spurred on by competition between the two species in areas where their ranges overlap.
The divergence of adaptations or other characteristics in two similar species in locations where the animals share habitat. This divergence is spurred on by competition between the two species in areas where their ranges overlap.
Generation Time
Average age at which a female gives birth to her offspring, or the average time for a population to increase by a factor equal to the net reproductive rate.
Average age at which a female gives birth to her offspring, or the average time for a population to increase by a factor equal to the net reproductive rate.
Domestication of Horses
Domestication is the process by which humans take wild species and acclimatize them to breeding and surviving in captivity.
Domestication is the process by which humans take wild species and acclimatize them to breeding and surviving in captivity.
Echinoderms
Echinoderms (Phylum Echinodermata) are a diverse group of marine invertebrates comprising approximately 6000 species. Subgroups of echinoderms include starfish, sea lilies, feather stars, brittlestars, sea cucumbers, and sea urchins.
Echinoderms (Phylum Echinodermata) are a diverse group of marine invertebrates comprising approximately 6000 species. Subgroups of echinoderms include starfish, sea lilies, feather stars, brittlestars, sea cucumbers, and sea urchins.
Xenarthrans
Armadillos, sloths, and anteaters belong to the Order Xenarthra, an ancient group of placental mammals that once roamed across Gondwanaland before the continents of the Southern Hemisphere separated into their present day configuration.
Armadillos, sloths, and anteaters belong to the Order Xenarthra, an ancient group of placental mammals that once roamed across Gondwanaland before the continents of the Southern Hemisphere separated into their present day configuration.
Insects
Insects are a highly successful group of animals. The Insecta account for more species of animals than any other class of animals.
Insects are a highly successful group of animals. The Insecta account for more species of animals than any other class of animals.
Marsupial Evolution
By 110 million years ago, mammals had diverged into two distinct groups: the placental mammals-a group that includes humans and most modern mammals-and the marsupial mammals-a group that includes koalas, kangaroos, wombats, and pouched mice.
By 110 million years ago, mammals had diverged into two distinct groups: the placental mammals-a group that includes humans and most modern mammals-and the marsupial mammals-a group that includes koalas, kangaroos, wombats, and pouched mice.
The Cheetah - A Unique Cat
The Cheetah (Acinonyx jubatus) is a highly unusual cat that has numerous characteristics that set it apart from all other cats.
The Cheetah (Acinonyx jubatus) is a highly unusual cat that has numerous characteristics that set it apart from all other cats.
Eastern Deciduous Forests
Deciduous forests once stretched from New England south to Florida and from the Atlantic Coast west to the Mississippi River.
Deciduous forests once stretched from New England south to Florida and from the Atlantic Coast west to the Mississippi River.
What is a Deciduous Forest?
The term deciduous forest is used to describe a type of forest in which the dominant species of trees and other woody vegetation that make up the forest are those species that shed their leaves during the cold months of the year and re-grows new leaves the next spring in time for the growing season.
The term deciduous forest is used to describe a type of forest in which the dominant species of trees and other woody vegetation that make up the forest are those species that shed their leaves during the cold months of the year and re-grows new leaves the next spring in time for the growing season.
Eland Antelope
Eland antelopes (Tragelaphus oryx) are the largest antelopes in the world but their considerable size doesn't mean they're eager to throw their weight around.
Eland antelopes (Tragelaphus oryx) are the largest antelopes in the world but their considerable size doesn't mean they're eager to throw their weight around.
Snail Estivation and Hibernation
Snails are usually active in the summer, but if it gets too warm and dry for them, they enter a period of inactivity known as estivation.
Snails are usually active in the summer, but if it gets too warm and dry for them, they enter a period of inactivity known as estivation.
Amino Acids and Proteins
Proteins are organic molecules that are vital to the structure and function of living organisms. The underlying elements that make up all proteins include carbon, hydrogen, oxygen, nitrogen and (in some cases) sulfur.
Proteins are organic molecules that are vital to the structure and function of living organisms. The underlying elements that make up all proteins include carbon, hydrogen, oxygen, nitrogen and (in some cases) sulfur.
Rodrigues Flying Fox
Conservation organizations from around the world have joined together to create the Alliance for Zero Extinction, an initiative that focuses on preventing extinctions by identifying and protecting key sites that are the last remaining habitat for one or more endangered species.
Conservation organizations from around the world have joined together to create the Alliance for Zero Extinction, an initiative that focuses on preventing extinctions by identifying and protecting key sites that are the last remaining habitat for one or more endangered species.
Coelenterates
A group of primitive aquatic animals that includes jellyfish, corals, and sea anemones.
A group of primitive aquatic animals that includes jellyfish, corals, and sea anemones.
How Do Coral Reefs Form?
Stony corals are a remarkable group of animals that inhabit tropical marine waters around the world and form vast colonies known as coral reefs
Stony corals are a remarkable group of animals that inhabit tropical marine waters around the world and form vast colonies known as coral reefs
What Is Desertification?
Desertification is the development of desert-like conditions in regions that have experienced human disturbance such as deforestation, overgrazing, or poorly managed agriculture.
Desertification is the development of desert-like conditions in regions that have experienced human disturbance such as deforestation, overgrazing, or poorly managed agriculture.
Diversity and Evolultion
The Great Barrier Reef is among the most complex ecosystems on the planet, providing habitat for a stunning variety and number of species.
The Great Barrier Reef is among the most complex ecosystems on the planet, providing habitat for a stunning variety and number of species.
Mammalian Temperature
Does it surprise you that reindeer, who spend much time standing in snow, don't get cold feet? Likewise, dolphins, whose thin flippers glide constantly through cool water, seem to be just fine.
Does it surprise you that reindeer, who spend much time standing in snow, don't get cold feet? Likewise, dolphins, whose thin flippers glide constantly through cool water, seem to be just fine.
What Is a Wetland?
Wetlands are habitats that fall somewhere on the environmental spectrum between land and water.
Wetlands are habitats that fall somewhere on the environmental spectrum between land and water.
Snail Habitat / Adaptation
Species of snails have evolved in both terrestrial and aquatic habitats. A snail's shell provides it with protection from changing weather conditions.
Species of snails have evolved in both terrestrial and aquatic habitats. A snail's shell provides it with protection from changing weather conditions.
Tiger
The tiger is the largest of all cats. This majestic creature grows to lengths of 4 1/2 to 9 1/2 feet and weights of 220 to 660 pounds. The tiger's coat is orange with black stripes and white markings on its face, chest, and underside.
The tiger is the largest of all cats. This majestic creature grows to lengths of 4 1/2 to 9 1/2 feet and weights of 220 to 660 pounds. The tiger's coat is orange with black stripes and white markings on its face, chest, and underside.
American Black Bear
The American black bear (Ursus americanus) is a medium-sized bear that grows to about 4 to 6 feet in length and between 120 and 660 pounds in weight. Black bears have powerful limbs and are equiped with short claws that enable them to break apart logs, climb trees, and collect grubs and worms.
The American black bear (Ursus americanus) is a medium-sized bear that grows to about 4 to 6 feet in length and between 120 and 660 pounds in weight. Black bears have powerful limbs and are equiped with short claws that enable them to break apart logs, climb trees, and collect grubs and worms.
Cats of Asia - Snow Leopard, Clouded Leopard, Tiger
Snow leopards live in mountainous habitat at elevations of between 2000 and 6000 meters. Their range extends from northwestern China to Tibet and the Himalayas.
Snow leopards live in mountainous habitat at elevations of between 2000 and 6000 meters. Their range extends from northwestern China to Tibet and the Himalayas.
About Cheetahs, Lynxes, Caracal and Other Small Cats
The Subfamily Felinae, or the small cats, are a diverse group of carnivores.
The Subfamily Felinae, or the small cats, are a diverse group of carnivores.
Ten Facts About Amphibians
Amphibians include frogs, toads, caecilians, newts and salamanders. Amphibians are the descendents of the first vertebrates to make the move from life in water to life on land. Despite their early colonization of terrestrial habitats, most lineages of amphibians have never fully severed their ties with aquatic habitats.
Amphibians include frogs, toads, caecilians, newts and salamanders. Amphibians are the descendents of the first vertebrates to make the move from life in water to life on land. Despite their early colonization of terrestrial habitats, most lineages of amphibians have never fully severed their ties with aquatic habitats.
Anemonefish
Anemonefish are a unique group of fish that live amongst the tentacles of sea anemones. The anemone's tentacles sting and paralyze most fish that brush against them.
Anemonefish are a unique group of fish that live amongst the tentacles of sea anemones. The anemone's tentacles sting and paralyze most fish that brush against them.
How Snails Move
Terrestrial snails move using their muscular foot. By creating an undulating 'wave' motion along the length of the foot, a snail is able to push against the ground and propel its body forward, albeit slowly.
Terrestrial snails move using their muscular foot. By creating an undulating 'wave' motion along the length of the foot, a snail is able to push against the ground and propel its body forward, albeit slowly.
Ten Facts About Giraffes
Giraffes are well-known for tall profile, their long neck, and distinct patchwork pattern and are therefore among the most recognizable creatures in the animal kingdom. Their large eyes, long tongue, sizeable ears, and tufted tail further contribute to their unique appearance. Despite giraffes being easily recognizable, there are many lesser-known facts about giraffes that make them worth a closer look.
Giraffes are well-known for tall profile, their long neck, and distinct patchwork pattern and are therefore among the most recognizable creatures in the animal kingdom. Their large eyes, long tongue, sizeable ears, and tufted tail further contribute to their unique appearance. Despite giraffes being easily recognizable, there are many lesser-known facts about giraffes that make them worth a closer look.
Sea Star Outbreaks
There are some species that inhabit the Great Barrier Reef that can tips its balance from time to time. Among those species is the crown-of-thorns starfish (Acanthaster planci), a large starfish that can grow to diameters of more than a meter and can have up to 21 arms.
There are some species that inhabit the Great Barrier Reef that can tips its balance from time to time. Among those species is the crown-of-thorns starfish (Acanthaster planci), a large starfish that can grow to diameters of more than a meter and can have up to 21 arms.
Endangered Species FAQs
Endangered species are species that face a significant risk of extinction. Such species may be declining in number due to things such as habitat destruction, climate change, threats from invasive species.
Endangered species are species that face a significant risk of extinction. Such species may be declining in number due to things such as habitat destruction, climate change, threats from invasive species.
How to Tell the Panthera Species Apart
The identification of the various panthera species (or 'roaring cats') can be confusing but armed with a few facts, you can quickly narrow down the possibilities when trying to place a name with a cat.
The identification of the various panthera species (or 'roaring cats') can be confusing but armed with a few facts, you can quickly narrow down the possibilities when trying to place a name with a cat.
Evolution of Snails
The earliest known snails were similar in structure to limpets. These creatures lived in shallow sea water and fed on algae and they had a pair of gills.
The earliest known snails were similar in structure to limpets. These creatures lived in shallow sea water and fed on algae and they had a pair of gills.
Why Do Fireflies Glow?
Fireflies, also known as lightning bugs, glow to lure prey, discourage predators, and most importantly to attract mates.
Fireflies, also known as lightning bugs, glow to lure prey, discourage predators, and most importantly to attract mates.
How Do Species Interact?
Wildlife species interact with each other in numerous, complex ways. Fortunately, we can make some general statements about these interactions.
Wildlife species interact with each other in numerous, complex ways. Fortunately, we can make some general statements about these interactions.
Coltan
Coltan, is a metallic ore found in Australia, Canada, Brazil, and central Africa.
Coltan, is a metallic ore found in Australia, Canada, Brazil, and central Africa.
Largest Organisms
Giant sequoias, blue whales, Komodo dragons, African elephants all share the distinction of being among the world's largest organisms. Find out more about these and other sizeable creatures in this article examining the largest organisms on Earth.
Giant sequoias, blue whales, Komodo dragons, African elephants all share the distinction of being among the world's largest organisms. Find out more about these and other sizeable creatures in this article examining the largest organisms on Earth.
Basic Facts About Cats
Cats are graceful, efficient predators that belong to the Family Felidae (a family known commonly as 'felids').
Cats are graceful, efficient predators that belong to the Family Felidae (a family known commonly as 'felids').
Snails, Slugs, and Nudibranchs
Gastropods (Gastropoda) include a wide variety of organisms such as terrestrial snails and slugs, sea slugs, sea hares, sea butterflies, canoe shells, conchs, whelks, limpets, periwinkles, oyster borers, coweries, nudibranchs, and many others.
Gastropods (Gastropoda) include a wide variety of organisms such as terrestrial snails and slugs, sea slugs, sea hares, sea butterflies, canoe shells, conchs, whelks, limpets, periwinkles, oyster borers, coweries, nudibranchs, and many others.
Intertidal Zone
The intertidal zone (or littoral zone) is the area of the sea floor that lies between the high and low tide marks, bridging the gap between land and sea.
The intertidal zone (or littoral zone) is the area of the sea floor that lies between the high and low tide marks, bridging the gap between land and sea.
Online Tour of Degrees
Looking for a university that offers a degree in zoology? Curious about faculty and research topics? Trying to find out more about the zoology courses offered at colleges throughout the country? If so, the links listed in this article can help you find the answers you need.
Looking for a university that offers a degree in zoology? Curious about faculty and research topics? Trying to find out more about the zoology courses offered at colleges throughout the country? If so, the links listed in this article can help you find the answers you need.
Glossary of Snail Terms
The following list of words highlights the terms used in this visual guide used to describe different aspects of snails.
The following list of words highlights the terms used in this visual guide used to describe different aspects of snails.
Endangered Animals (AZ)
The following list is an adaptation of threatened and endangered species data published at the The US Fish & Wildlife Service's Endangered Species Program Website.
The following list is an adaptation of threatened and endangered species data published at the The US Fish & Wildlife Service's Endangered Species Program Website.
Birds of Prey
Birds of prey (Order Falconiformes) include eagles, hawks, kites, the secretary bird, ospreys, and falcons. These birds have superb eyesight, strong legs and talons, a sharp, hooked bill and are adept hunters.
Birds of prey (Order Falconiformes) include eagles, hawks, kites, the secretary bird, ospreys, and falcons. These birds have superb eyesight, strong legs and talons, a sharp, hooked bill and are adept hunters.
Feather Stars
animals wildlife coral reef Great Barrier Reef marine life feather stars echinoderms
animals wildlife coral reef Great Barrier Reef marine life feather stars echinoderms
Guide to Buying Binoculars
I was recently in the market for a new pair of binoculars and when I first started shopping around, I was bewildered by the vast number of makes and models available these days. Since I received my first pair of binoculars as a gift more than twenty years ago, I lacked experience shopping for the gadgets myself. I knew I had a lot to learn if I was going to invest my money wisely.
I was recently in the market for a new pair of binoculars and when I first started shopping around, I was bewildered by the vast number of makes and models available these days. Since I received my first pair of binoculars as a gift more than twenty years ago, I lacked experience shopping for the gadgets myself. I knew I had a lot to learn if I was going to invest my money wisely.
Even-Toed Ungulates
The even-toed ungulates (Order Artiodactyla) include camels, giraffes, cattle, pigs, hippoptamuses, deer, pronghorn, and peccaries. Even-toed ungulates (artiodactyls) are hoofed mammals with feet that are symmetrical around a plane of symmetry that runs between their third and fourth toes.
The even-toed ungulates (Order Artiodactyla) include camels, giraffes, cattle, pigs, hippoptamuses, deer, pronghorn, and peccaries. Even-toed ungulates (artiodactyls) are hoofed mammals with feet that are symmetrical around a plane of symmetry that runs between their third and fourth toes.
Ecological Efficiency
A measure of the amount of energy in the biomass that is produced by one trophic level and is incorporated into the biomass produced by the next (higher) trophic level.
A measure of the amount of energy in the biomass that is produced by one trophic level and is incorporated into the biomass produced by the next (higher) trophic level.
Snail Senses
Terrestrial snails have eyes that are located on the tips of their upper, longer pair of tentacles. But snails don't see in the same way we do. Their eyes are less complex and provide them with a general sense of light and dark in their surroundings.
Terrestrial snails have eyes that are located on the tips of their upper, longer pair of tentacles. But snails don't see in the same way we do. Their eyes are less complex and provide them with a general sense of light and dark in their surroundings.
Penguins
Penguins (Order Sphenisciformes) are flightless birds that have stiff wings and distinct coloration (black or gray feathers on their backs and white feathers on their bellies). Their wing bones are fused to form flipper-like limbs and enable the birds to dive and swim with great skill.
Penguins (Order Sphenisciformes) are flightless birds that have stiff wings and distinct coloration (black or gray feathers on their backs and white feathers on their bellies). Their wing bones are fused to form flipper-like limbs and enable the birds to dive and swim with great skill.
Warning Coloration
A combination of contrasting colors that warns that an animal is dangerous.
A combination of contrasting colors that warns that an animal is dangerous.
Source Population
"A breeding group that produces enough offspring to be self-sustaining and that often produces excess young that must disperse to other areas." (Source: Sibley)
"A breeding group that produces enough offspring to be self-sustaining and that often produces excess young that must disperse to other areas." (Source: Sibley)
Waterfowl
Waterfowl (Order Anseriformes) include ducks, swans, geese, and screamers. Members of this order inhabit aquatic habitats such as swamps, rivers, lakes, streams, and ponds.
Waterfowl (Order Anseriformes) include ducks, swans, geese, and screamers. Members of this order inhabit aquatic habitats such as swamps, rivers, lakes, streams, and ponds.
Owls - Order Strigiformes
Owls (Order Strigiformes) are a diverse group of birds that includes over 200 species. The Order Strigiformes is subdivided into two families, Family Strigidae (typical owls) and Family Tytonidae (barn owls).
Owls (Order Strigiformes) are a diverse group of birds that includes over 200 species. The Order Strigiformes is subdivided into two families, Family Strigidae (typical owls) and Family Tytonidae (barn owls).
Endangered Animals (FL)
The following list is an adaptation of threatened and endangered species data published at the The US Fish & Wildlife Service's Endangered Species Program Website.
The following list is an adaptation of threatened and endangered species data published at the The US Fish & Wildlife Service's Endangered Species Program Website.
Endangered Animals (MS)
The following list is an adaptation of threatened and endangered species data published at the The US Fish & Wildlife Service's Endangered Species Program Website for the state of Mississippi.
The following list is an adaptation of threatened and endangered species data published at the The US Fish & Wildlife Service's Endangered Species Program Website for the state of Mississippi.
Feather Anatomy and Function
Feathers are a unique adaptation of birds. Feathers are made up of keratin, an insoluble protein that is also found in mammalian hair and reptilian scales.
Feathers are a unique adaptation of birds. Feathers are made up of keratin, an insoluble protein that is also found in mammalian hair and reptilian scales.
Scarlet Ibis
The scarlet ibis (Eudocimus ruber) is a South American wading bird that belongs to the same order as herons, spoonbills, and storks.
The scarlet ibis (Eudocimus ruber) is a South American wading bird that belongs to the same order as herons, spoonbills, and storks.
Canids
Members of the Family Canidae include dogs, wolves, foxes, coyotes, jackels. The Family Canidae is referred to in general as the canids.
Members of the Family Canidae include dogs, wolves, foxes, coyotes, jackels. The Family Canidae is referred to in general as the canids.
Coastal Sand Dunes
Sand dunes are mounds of sand that line a coast that have been sculpted by winds and waves.
Sand dunes are mounds of sand that line a coast that have been sculpted by winds and waves.
Greater Flamingo
The greater flamingo (Phoenicopterus ruber) is a lanky wading bird known for its distinct pink plumage, pink legs, and stout, down-turned bill.
The greater flamingo (Phoenicopterus ruber) is a lanky wading bird known for its distinct pink plumage, pink legs, and stout, down-turned bill.
Blue Whale
The magnificent blue whale (Balaenoptera musculus) is our planet's largest animal, reaching lengths of 66 to 98 feet and weights of 110 to 176 tons. Blue whales belong to the group of whales know as the baleen whales.
The magnificent blue whale (Balaenoptera musculus) is our planet's largest animal, reaching lengths of 66 to 98 feet and weights of 110 to 176 tons. Blue whales belong to the group of whales know as the baleen whales.
Hares, Rabbits, and Pikas
Hares, pikas and rabbits (Order Lagomorpha) are small terrestrial mammals that can be found in a diverse range of habitats on every continent except Australia and Antarctica. Lagomorphs have short tails, large ears, eyes that are positioned high on each side of the head, and narrow, slitlike nostriles that they are able to close completely.
Hares, pikas and rabbits (Order Lagomorpha) are small terrestrial mammals that can be found in a diverse range of habitats on every continent except Australia and Antarctica. Lagomorphs have short tails, large ears, eyes that are positioned high on each side of the head, and narrow, slitlike nostriles that they are able to close completely.