The mighty Mississippi River is home to the alligator—one of North America’s fiercest predators. In these waters, they grow to incredible sizes. Just how massive can they get? Watch this video to see ...

Alligators also live in parts of China, Central and South America, and the Caribbean. They’ve been introduced to locations such as Hawaii, Japan, France, and the Cayman Islands.

The alligator gar bears no relation to alligators, but with its wide, crocodilian head and razor-sharp teeth, it’s easy to ...