King Crocs: Deadly Killing Machines

With 2,000 pounds of sheer brute strength, an enormous set of teeth and a jaw that could snap a human in half, crocodiles are incredibly fierce and deadly predators. They are largest reptiles on Earth. A whip of their tails can shatter bone and they can hoist their massive bodies 8 feet out of the water to snatch prey from the air. (Courtesy National Geographic, "King Crocs" premieres Dec. 3 on National Geographic Channel)