The Pronghorn Antelope

Fossilized remains on the North American continent are reminders that the pronghorn antelope (Antilocapra americana) roamed the land in present-day forms as early as the Age of Mammals, over one million years ago. Evolutionary changes may have taken 20 million years to develop the pronghorn as we know it today. Surviving the rigors of this violent young continent, the ancestral pronghorn antelope thrived and evolved into an alert, fleet-footed ungulate which roamed the large expanse of brush, grassland and cactus of the plains area