Do you know about the family of reptiles called Crocodilians? If not, you are missing out on a fascinating group of reptiles. Herpetologists have identified twenty-three living species inhabiting the world. Extinction has eliminated some species like the Super Croc. Some of the twenty-three living species are currently endangered or protected. People like the Crocodile Hunter, Steve Irwin of the Discovery Channel, strive to educate people about the four groups of crocodilians: crocodiles, alligators, gavials and caimans. Learning more about crocodilians is important to everyone in the world. Snap on your gaiters and wade in to learning more about these intriguing reptiles.