Cast & Crew
Documentary that reveals the secrets of one of nature's oldest and most successful designs, the crocodile. The crocodile is the biggest living reptile and offers a lesson in evolution. Over twenty species of crocodiles penetrate the swamps and waterways of five continents. Certain evolutionary adaptations, such as their ability to stay underwater for over an hour by reducing their heart rate and storing oxygen have contributed to the species survival and may help scientists make strides in medicine.