Whether they "swim" through the sand like a skink, go faster than a speeding locomotive like the cheetah, or live with a hole in the head like the African gecko, these amazing animals can do some pretty unbelievable things. For example, did you know there's a mouse the size of a dollhouse? It's the graceful capybara, the world's largest rodent. Would it surprise you to find out that the leopard hunts so well it can catch just about anything it wants? And meet the prehistoric-looking marine iguana; it's the only reptile completely adapted to life in the sea. Fabulous photos go closeup to these creatures--closer than you'd ever want to go in real life!--and special boxes highlight particularly incredible facts.