N
This collection of terms and their definitions should help as you try to understand the vast language that has developed for the study of animals. Terms in this category begin with the letter N'.
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Please refer to the Glossary Citations page for details about sources used for glossary entries.
Glossary index: A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
Please refer to the Glossary Citations page for details about sources used for glossary entries.
Neoproterozoic
Neoproterozoic
Neoproterozoic
Neoarchean
Neoarchean
Neoarchean
Nature
Nature comprises all living organisms (biotic components), all non living components such as the physical environment (abiotic components), and all of the possible interactions among and between biotic and abiotic components.
Nature comprises all living organisms (biotic components), all non living components such as the physical environment (abiotic components), and all of the possible interactions among and between biotic and abiotic components.
Naricorns
"Raised, hrony tubes (nostril sheaths) on top of the bill that encase the nostrils of members of the order Procellariiformes." (Source: Sibley)
"Raised, hrony tubes (nostril sheaths) on top of the bill that encase the nostrils of members of the order Procellariiformes." (Source: Sibley)
Nearctic
"Relating to the biogeographic subregion that includes Greenland and North America north of tropical Mexico." (Source: Sibley)
"Relating to the biogeographic subregion that includes Greenland and North America north of tropical Mexico." (Source: Sibley)
Nectivorous
"Nectar-eating." (Source: Sibley)
"Nectar-eating." (Source: Sibley)
Nematocyst
A specialized stinging cell in coelenterates; contains a hairlike structure that can be ejected.
A specialized stinging cell in coelenterates; contains a hairlike structure that can be ejected.
Neonate
Newborn snake or lizard when it is the product of a live birth
Newborn snake or lizard when it is the product of a live birth
Neotropics
"The biogeographic region that includes southern Mexico and Central America, the Caribbean, and South America." (Source: Sibley)
"The biogeographic region that includes southern Mexico and Central America, the Caribbean, and South America." (Source: Sibley)
Nephridium
An excretory organ consisting of an open bulb and a tubule leading to the exterior; found in many invertebrates, such as segmented worms.
An excretory organ consisting of an open bulb and a tubule leading to the exterior; found in many invertebrates, such as segmented worms.
Neritic
"Relating to the portion of the ocean composed of the shallow waters over the continental shelf." (Source: Sibley)
"Relating to the portion of the ocean composed of the shallow waters over the continental shelf." (Source: Sibley)
Nest Parasitism
"Reproduction by laying eggs in the nests of other birds, leaving the nest owners to provide parantal care. May be interspecific (eggs laid in the nests of other species) or intraspecific (eggs laid in nests of the same species)." (Source: Sibley)
"Reproduction by laying eggs in the nests of other birds, leaving the nest owners to provide parantal care. May be interspecific (eggs laid in the nests of other species) or intraspecific (eggs laid in nests of the same species)." (Source: Sibley)
New World
"The Western hemisphere, including North and South America." (Source: Sibley)
"The Western hemisphere, including North and South America." (Source: Sibley)
Nidicolous
"Reared for a time in a nest." (Source: Sibley)
"Reared for a time in a nest." (Source: Sibley)
Nidifugous
"Leaving the nest soon after hatching. Nidifugous young are always precocial." (Source: Sibley)
"Leaving the nest soon after hatching. Nidifugous young are always precocial." (Source: Sibley)
Nomadism
"Movement in which a population shifts from site to site between seasons in a relatively unpredictable manner." (Source: Sibley)
"Movement in which a population shifts from site to site between seasons in a relatively unpredictable manner." (Source: Sibley)