Pronghorn Antelope are
year-round residents on the INL, though in severe winter seasons
pronghorns from throughout the state and as far away as Montana migrate
to the INL.
Pronghorns are the only member of its
family, Antilocapridae. The pronghorn is extremely fast, with a top
speed of about 60 miles per hour, and can easily outrun any other animal
that tries to catch it.
The pronghorn has dark brown hair on its
back and sides with lighter colored hair on its belly, throat and rump
patch. A male has black cheek patches, some black over his face, and