Watch Animal Autopsy online: Episode 4 Crocodile

With 23 known species of crocodiles in existence, this group of ancient reptilians is perhaps the most well-adapted predator the world has ever seen. Crocodiles have been around for almost 200-million years, their basic design not having changed during all this time, making crocs one of the most successful living beings on Earth. They outlasted dinosaurs and survived the catastrophic extinction of many other dominant species on the planet. But how can such an ancient, primitive design still be state-of-the-art today? Scientists are about to uncover the secret of the crocodile’s success.

click here to see where to watch or .