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Cetaceans

Dolphins, porpoises, and whales (Order Cetacea)—also referred to as cetaceans—are marine mammals that include toothed whales and toothless, filter-feeding (baleen) whales. Cetaceans are a unique and highly-specialized group of mammals with hairless bodies, flipper like forelimbs, and reduced back limbs that are located within the body wall (vestigal).
Largest Animal - Blue Whale
Largest Animal - Blue Whale
'Whales: An Unforgettable Journey'
'Whales: An Unforgetable Journey' is a nature film directed by David Clark and Al Giddings that includes some stunning sequences of whale behavior and there are touching scenes of humans interacting with whales.
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 make a dolphin a dolphin. Here we'll explore ten characteristics of dolphins and learn more about these much-loved marine mammals.
Atlantic White-Sided Dolphin (Lagenorhynchus acutus)
The Atlantic White-Sided Dolphin (Lagenorhynchus acutus) is named for its coloration. This species has a black dorsal region that fades to gray along its sides and a distinctive white coloration running along its ventral surface most of the length of its body.
Blue Whale (Balaenoptera musculus)
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.
Bottlenose Dolphin (Tursiops truncatus)
The bottlenose dolphin (Tursiops truncatus) belongs to the Family Delphinidae, the largest family of the Order Cetacea, which includes killer whales, pilot whales, and other dolphins.
Cetaceans (Order Cetacea)
Cetaceans (Order Cetacea) are marine mammals that includes toothed whales and toothless, filter-feeding (baleen) whales. Cetaceans are a unique and highly-specialized group of mammals with hairless bodies, flipper like forelimbs, and reduced back limbs that are located within the body wall (vestigal).
Common Dolphin (Delphinus delphis)
The common dolphin (Delphinus delphis) grows to lengths of 2.3m-3.6m (7.5ft-8.5ft) and weights of up to 80kg (175lb). Common dolphins are colorful with a characteristic hourglass-shaped pattern on their sides.
Describing Cetacean Behavior
Breaching is among the most spectacular of cetacean behaviors that you might observe because it involves the cetacean emerging partially or fully from the water.
Dusky Dolphin (Lagenorhynchus obscurus)
The dusky dolphin (Lagenorhynchus obscurus) is a medium sized dolphin, growing to lengths of 5.5 to 7 feet and weights of 150 to 185 pounds. It has a sloping face with no dominant beak nose. It is dark gray (or dark blue-gray) on its back and white on its belly.
Gray Whale (Eschrichtius robustus)
Gray whales (Eschrichtius robustus) are cetaceans that belong to the Suborder Mysticeti, the Baleen whales. Baleen whales, also called filter-feeding whales, have 2 sets of plates that extend from the upper jaw and enable the animal to filter food from the oceans in which it swims.
Definition of cetaceans
The order of marine mammals that includes toothed whales and toothless, filter-feeding (baleen) whales.
Irrawaddy Dolphin (Orcaella brevirostris)
The Irrawaddy dolphin (Orcaella brevirostris) inhabits coastal waters, brackish estuaries and freshwater rivers in Australaisia and Southeast Asia. This endangered dolphin is pale gray and grows to lengths of 2-2.75 meters. It has a round head and no beak and is occassionally mistaken for a beluga whale or a porpoise.
Northern Bottlenose Whale (Hyperoodon ampullatus)
The Northern Bottlenose Whale (Hyperoodon ampullatus) is a beaked whale that has a gray body, dark brown to gray tail, and a light forehead and a small beak.
Orca (Orcinus orca)
Orcas (Orcinus orca), also known as killer whales, belong to the Order Cetacea, a group of marine mammals that includes whales and dolphins.
Whale Deaths Spark Concern Over Survival of a Species
Since November 2004, four North Atlantic Right Whales (Eubalaena glacialis) have been found dead along the east coast of the United States. Two of the four dead whales were pregnant at the time of their deaths. At least two of the four deaths have been attributed to collisions with ships.

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