Dangerous Job: Testing How Hard Crocodiles Bite - Greg Erickson

Evolution felt the crocodile was complete 85 million years ago. The reptile's powerful jaws have kept it in business, unchanged. Crocs have a bite force that is the most powerful ever recorded: 3,700 pounds of pressure. Once its jaws clamp shut, National Geographic grantee Greg Erickson tells Boyd, there isn't an option to let go. He tells about how he tests the bites of these animals and why his was a study that he isn't eager to replicate.