The Ankole-Watusi (hybrid of Bos primigenius taurus and Bos primigenius indicus) is a medium-sized breed of domestic cattle from the Ankole group of Sanga cattle of central Africa. It originated from the Egyptian Longhorn Cattle and the Indian Zebu Longhorn Cattle. It is also known as the African Longhorn.
The Ankole-Watusi Cattle have very large horns, of about 92 centimetres (37 inches) long. The circumference of the horns is the largest in the world, at about 100 centimetres (39 inches). The horns are part of adaptation to a hot climate by allowing dispersal of excess body heat.