10" X 30"
Pronghorn are considered the second fastest land animal after the cheetah. They can reach speeds up to 55 mph and maintain it for 1/2 mile. This speed demon can run 35 mph for 4 miles. Either speed would clearly outdistance any of North America's current predators. One theory suggests they evolved their fleetness to outrun the extinct North American cheetah and prehistoric lions and jaguars. Regardless of the origin of their speed, a slate of pronghorn would make for an impressive track team.