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A zebroid is the offspring of any cross between a zebra and any other equine to create a hybrid. In most cases, the sire is a zebra stallion. The offspring...

The nutria (/ˈnjuːtriə/) or coypu (/ˈkɔɪpuː/) (Myocastor coypus) is a herbivorous, semiaquatic rodent from South America. Classified for a long time as...

The mountain beaver (Aplodontia rufa) is a North American rodent. It is the only living member of its genus, Aplodontia, and family, Aplodontiidae. It...

Conch (US: /kɒŋk/ konk, UK: /kɒntʃ/ kontch) is a common name of a number of different medium-to-large-sized sea snails. Conch shells typically have a high...

Call Several wood ducks calling Problems playing this file? See media help. The wood duck or Carolina duck (Aix sponsa) is a partially migratory species...

Orange juice is a liquid extract of the orange tree fruit, produced by squeezing or reaming oranges. It comes in several different varieties, including...

In neuroanatomy, the trigeminal nerve (lit. triplet nerve), also known as the fifth cranial nerve, cranial nerve V, or simply CN V, is a cranial nerve...

Dormancy is a period in an organism's life cycle when growth, development, and (in animals) physical activity are temporarily stopped. This minimizes metabolic...

The common murre or common guillemot (Uria aalge) is a large auk. It has a circumpolar distribution, occurring in low-Arctic and boreal waters in the North...

An afterimage is an image that continues to appear in the eyes after a period of exposure to the original image. An afterimage may be a normal phenomenon...

Synanceia is a genus of ray-finned fish belonging to the subfamily Synanceiinae, the stonefish, which is classified within the family Scorpaenidae, the...

The pandemic H1N1/09 virus is a swine origin influenza A virus subtype H1N1 strain that was responsible for the 2009 swine flu pandemic. This strain is...

Neuregulin 1, or NRG1, is a gene of the epidermal growth factor family that in humans is encoded by the NRG1 gene. NRG1 is one of four proteins in the...

Gonystylus is a southeast Asian genus of about 30 species of hardwood trees also known as ramin, melawis (Malay) and ramin telur (Sarawak). Ramin is native...

Paleopolyploidy is the result of genome duplications which occurred at least several million years ago (MYA). Such an event could either double the genome...

Geoffroy's tailless bat (Anoura geoffroyi) is a species of phyllostomid bat from the American tropics. Geoffroy's tailless bat is a medium-sized bat, measuring...

Sociobiological theories of rape explore how evolutionary adaptation influences the psychology of rapists. Such theories are highly controversial, as traditional...

Beccariophoenix is a genus of three species of Arecaceae (palms), native to Madagascar. The genus is closely related to the Cocos, or coconut genus, and...

In cellular biology, mechanotransduction (mechano + transduction) is any of various mechanisms by which cells convert mechanical stimulus into electrochemical...

The pipits are a cosmopolitan genus, Anthus, of small passerine birds with medium to long tails. Along with the wagtails and longclaws, the pipits make...