Pronghorn

Pronghorns are one of North America’s most interesting mammals. Not only do pronghorns have the longest land migration in the continental United States, they also are the fastest land animal in North America.

Pronghorns can run at speeds close to 60 miles per hour. Although pronghorns are not as fast as cheetahs, they maintain a fast speed for a longer period of time than cheetahs. When a cheetah has run out of energy, the pronghorn is still going. They're true marathon runners!

Even more amazing than its speed is the pronghorn’s migration. Herds of pronghorns migrate 150 miles each way between Wyoming’s Upper Green River Basin and Grand Teton National Park. The only other land animal to travel farther in North America is the caribou.

The 300 mile trip is grueling and requires crossing private property and fences. In the past, pronghorns had to worry about predators and cold weather. Today, the bigger threats are cars, impassable fences and development. The National Wildlife Federation and its affiliates are working hard to create wildlife corridors for pronghorns and other migratory wildlife and reduce conflicts between animals and people.