The Ankole-Watusi, also known as Ankole Longhorn, is a landrace breed of cattle originally native toAfrica. Its large distinctive horns that can reach up to 8 ft (2.4 m) from tip to tip are used for defense and cooling by honeycombs of blood vessels. Ankole-Watusis weigh from 900 to 1,600 pounds (410 to 730 kg).
Living in the savannas and open grasslands, their diet consists of grass and leaves. The variety is sometimes known as Ankole or Watusi, and is a type of Sanga cattle. source