HORNS VERSUS ANTLERS VERSUS PRONGHORNS

Horns are permanent (not shed) and have a bony core and keratin sheath and are not forked. Males have horns and females may or may not have horns. North American species with horns include sheep (bighorn and Dall's), mountain goats, muskoxen, and bison. Antlers are shed annually and are composed totally of bone and are forked. Only males have antlers except in caribou. North American species with antlers include members of the deer family (deer, moose, elk, caribou). Pronghorns have a bony core (permanent) and a keratin sheath (shed annually) and are forked. Both sexes have pronghorns. Only the Pronghorn has pronghorns.