The Fastest Mammal in the Americas

The pronghorn is an even-toed mammal indigenous to interior western and central North America. It is the only surviving member of Antilocapridae.

George Ord officially described the species in 1815. Lewis and Clark encountered it earlier near the Niobrara River.

Males carry a horn sheath averaging 9.8 inches long with a forward-pointing tine. Shedding keratin annually beats losing car keys.

Females weigh 75 to 106 pounds. Their horns average 4.7 inches and rarely have prongs.

A startled pronghorn flares white rump hair, exposing glands releasing 2-pyrrolidinone. A panic attack that smells like a matinee.

Pronghorns can cover that distance in a single bound.

Pronghorns prefer open terrain at elevations between 3,000 and 5,900 feet. An Idaho migration route covers more than 160 miles.

The pronghorn is built for running, not jumping. They go under fences instead.