The horns on this bull, greater kudu antelope have only twisted about one-and-a-half times. This means the animal is about three or four years old. By the sixth year, those horns will extend to two feet and twist again. He will also grow a large mane on his throat and weigh about 600 pounds. The greater kudu antelopes graze on grass and lives along rocky hills and protected plains in southeastern Africa. If that is too far away, you can see a herd at Natural Bridge Wildlife Ranch near San Antonio, Texas.