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Soay sheep of varied colours. The Hirta population is unmanaged and has been the subject of scientific study since the 1950s. The population makes an ideal model subject for scientists researching evolution, population dynamics and demography because the population is unmanaged, is closed (no emigration or immigration) and has no significant competitors or predators.
Prominent members include sheep and goats, with some other members referred to as goat antelopes. Some earlier taxonomies considered Caprinae a separate family called Capridae (with the members being caprids), but now it is usually considered either a subfamily within the Bovidae, or a tribe within the subfamily Antilopinae of the family ...
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.
The Dunface sheep kept as domestic livestock in the St Kilda archipelago were mixed to some extent with Scottish Blackface sheep in the late 19th century, and survive as the Boreray (the other sheep of St Kilda is the feral Soay, which is a survivor of an even earlier short-tailed type of sheep and is not derived from the Dunface).
The Soay Sheep has prehistoric origins, [citation needed] and the Galloway breed of beef cattle dates back several hundred years. New breeds have also been developed more recently in Scotland, such as the Scottish Fold cat, which dates from 1961. [2] The North Ronaldsay Sheep is a most unusual breed, subsisting largely on a diet of seaweed. [3]
A group of three Hebridean sheep rams from the Weatherwax Flock. The sheep kept throughout Britain up to the Iron Age were small, short-tailed, and varied in colour. These survived into the 19th century in the Highlands and Islands as the Scottish Dunface, which had various local varieties, most of which are now extinct (some do survive, such as the Shetland and North Ronaldsay).
The Bovidae comprise the biological family of cloven-hoofed, ruminant mammals that includes cattle, bison, buffalo, antelopes (including goat-antelopes), sheep and goats. A member of this family is called a bovid. With 143 extant species and 300 known extinct species, the family Bovidae consists of 11 (or two) major subfamilies and thirteen ...
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.