Zoology glossary ~ N

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Naricorns
"Raised, hrony tubes (nostril sheaths) on top of the bill that encase the nostrils of members of the order Procellariiformes." (Source: Sibley)

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.

Nearctic
"Relating to the biogeographic subregion that includes Greenland and North America north of tropical Mexico." (Source: Sibley)

Nectivorous
"Nectar-eating." (Source: Sibley)

Nematocyst
A specialized stinging cell in coelenterates; contains a hairlike structure that can be ejected.

Neoarchean
Neoarchean

Neonate
Newborn snake or lizard when it is the product of a live birth

Neoproterozoic
Neoproterozoic

Neotropics
"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.

Neritic
"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)

New World
"The Western hemisphere, including North and South America." (Source: Sibley)

Nidicolous
"Reared for a time in a nest." (Source: Sibley)

Nidifugous
"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)