All modern domestic cattle are believed to belong to the species Bos taurus (European breeds such as Shorthorn and Jersey) or Bos indicus (Zebu breeds such as Brahman) or to be crosses of these two (such as Santa Gertrudis). Beef cattle breeds as they are known today did not always exist, and many are of recent origin to meet an increasing demand for beef. The various breeds were eventually established by years of careful selection and mating of animals to attain desired qualities, emphasizing traits such as disposition, fertility, weight, conformation, and hardiness. The British Isles led the world in ...(100 of 159 words) Access the full article Help support true facts by becoming a member. Subscribe today!