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A sheep–goat chimera (sometimes called a geep in popular media [13]) is a chimera produced by combining the embryos of a goat and a sheep; the resulting animal has cells of both sheep and goat origin. A sheep–goat chimera should not be confused with a sheep–goat hybrid, which can result when a goat mates with a sheep.
Sheep and goats are found primarily in Eurasia, though the Barbary sheep and the ibex form part of the African fauna. The muskox is confined to the arctic tundra. Several bovid species have been domesticated by human beings. The domestication of goats and sheep began 10 thousand years ago, while cattle were domesticated about 7.5 thousand years ...
The goat or domestic goat (Capra hircus) is a species of goat-antelope that is mostly kept as livestock. It was domesticated from the wild goat (C. aegagrus) of Southwest Asia and Eastern Europe. The goat is a member of the family Bovidae, meaning it is closely related to the sheep. It was one of the first animals to be domesticated, in Iran ...
Sheep and goats are closely related: both are in the subfamily Caprinae. However, they are separate species, so hybrids rarely occur and are always infertile. A hybrid of a ewe and a buck (a male goat) is called a sheep-goat hybrid, known as geep. Visual differences between sheep and goats include the beard of goats and divided upper lip of sheep.
Skeleton of a Barbary sheep (Ammotragus lervia) on display at the Museum of OsteologyAlthough most goat-antelopes are gregarious and have fairly stocky builds, they diverge in many other ways – the muskox (Ovibos moschatus) is adapted to the extreme cold of the tundra; the mountain goat (Oreamnos americanus) of North America is specialised for very rugged terrain; the urial (Ovis orientalis ...
Over a billion each of domesticated sheep, cattle, and goats, and over 200 million domesticated water buffalo, 14 million domestic yak, and 300,000 domesticated gayal are used in farming worldwide.
Cats [7] [71] and horses [7] [72] have been shown to hybridize with many closely related species. The archaeological and genetic data suggests that long-term bidirectional gene flow between wild and domestic stocks – including canids, donkeys, horses, New and Old World camelids, goats, sheep, and pigs – was common.
The term is sometimes used to refer solely to animals who are raised for consumption, and sometimes used to refer solely to farmed ruminants, such as cattle, sheep, and goats. [1] Horses are considered livestock in the United States. [2] The USDA classifies pork, veal, beef, and lamb as livestock, and all livestock as red meat.