gnostek1 / 15
- 01The pronghorn's top speed of 55 mph is second only to the cheetah among all land animals.
- 02Its oversized trachea and lungs deliver oxygen at a rate far beyond what any current North American predator demands.
- 03The American cheetah, its evolutionary co-author, vanished with the Pleistocene megafauna around 10,000 BCE.