A Pronghorn in Custer State Park in the Black Hills of South Dakota relaxes in a meadow this past May. These are the fastest land animals in North America, sustaining speeds up to 60 miles per hour. In the world, they are second only to Cheetahs on land. A few years ago, I witnessed a herd of Pronghorn fleeing predators, a pair of Coyotes that had singled out an injured or ailing Pronghorn from the rest of the herd. The experience was like watching a nature program about the Serengeti on PBS but it was here in the US.