Here are some interesting facts about cheetahs: Cheetahs are the fastest land animals and can run up to speeds of 60 to 70 miles per hour. They have a unique anatomy that allows them to run at such high speeds, including a long, slender body, a long tail for balance, and powerful leg muscles. Cheetahs are known for their distinctive black “tear marks” that run from the inside corners of their eyes down to the sides of their noses.