6. Ankole Watusi
If you thought bulls and moose had the big horns, think again! This ankole-watusi, or Ankole Longhorn is a type of cattle which is found in Africa. Those horns can measure as long as 8 feet from tip to tip! And are naturally used for defense as well as cooling by honeycombs of blood vessels. They mostly graze in the grasslands and savannas.