Horns have a bony core that is never shed with an outer shell of hardened, keratinized hair. The outer shell of a true horn is not shed, but IS shed annually in pronghorn. Both sexes of prongohorn antelope have horns, but those of females are small. Bucks gather harems of up to 20 does. Restricted doe harvest is typical.
Pronghorn are wary and rely on vision, speed and escape.
Can run at 55 mph. When alarmed, the white rump patch flares out serving as a visual alarm to the rest of the herd. They will not jump most barbed wire fences however, and these have caused problems. Eat sagebrush in winter, grasses and forbs spring through summer. The annual cycle of rapid antler growth is notable.