Updated: Feb 17, 2020
Pronghorn Antelope - Grand Teton National Park
The pronghorn is the fastest animal in North America being clocked at speeds up to 65 mph. This is a mature buck sporting horns made of keratin. The pronghorn is the only horned ungulate in the Yellowstone Ecosystem that sheds its horns.
The pronghorn is the fastest animal in North America being clocked at speeds up to 65 mph. This is a mature buck sporting horns made of keratin. The pronghorn is the only horned ungulate in the Yellowstone Ecosystem that sheds its horns.