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Bos (from Latin bōs: cow, ox, bull) is a genus of bovines, which includes, among others, wild and domestic cattle.. Bos is often divided into four subgenera: Bos, Bibos, Novibos, and Poephagus, but including these last three divisions within the genus Bos without including Bison is believed to be paraphyletic by many workers on the classification of the genus since the 1980s.
Cattle (Bos taurus) are large, domesticated, bovid ungulates widely kept as livestock. They are prominent modern members of the subfamily Bovinae and the most widespread species of the genus Bos . Mature female cattle are called cows and mature male cattle are bulls .
It is a hybrid descendant from crossing of wild gaur and domestic cattle, either Bos indicus or Bos taurus. [7] In 2020, Ranganathan Kamalakkannan et Al. found "phylogenetic analysis using complete mitochondrial genome sequences unambiguously suggested that gaur is the maternal ancestor of domestic mithun." [8] [9]
Both scientific names Bos taurus and Bos indicus were introduced by Carl Linnaeus in 1758, with the latter used to describe humped cattle in China. [3]The zebu was classified as a distinct species by Juliet Clutton-Brock in 1999, [8] but as a subspecies of the domestic cattle, Bos taurus indicus, by both Clutton-Brock and Colin Groves in 2004 [9] and by Peter Grubb in 2005. [10]
A group of Asian indicine cattle ("Zebu", Bos taurus indicus) split off in around 700 AD (around the time of Islamization of the East African coast) and mingled with African taurines in different ratios, producing the four groups of African humped cattle. In Kim's own analysis, African taurines gained key adaptations in 16 genes for immunity ...
A Holstein Friesian bull A Charolais bull. A bull is an intact (i.e., not castrated) adult male of the species Bos taurus ().More muscular and aggressive than the females of the same species (i.e. cows proper), bulls have long been an important symbol in many religions, including for sacrifices.
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