Reptile expert Brady Barr sets out to measure the bone-crushing capacity of a wild Nile crocodile whose jaws may be the most powerful on earth.

The False Gharial of Borneo, the Chinese Alligator and the Philippine Crocodile are incredibly shy creatures. Merely seeing one in the wild is rare, but catching one? Brady Barr faces his toughest assignment yet.

National Geographic reptile expert Brady Barr is on the trail of a mysterious beast some say is a dinosaur, a brontosaurus-like creature reminiscent of Scotland's Loch Ness monster. Brady's research pays off in a face-to-face encounter.

NGC herpetologist Brady Barr searches for the dens of the most deadly animals: Chinese alligators, American black bears, snakes in South Africa and sharks off Maui's coast.