Alligators and Crocodiles

The American alligator is the second-largest reptile in North America, falling just slightly behind its cousin, the American crocodile.

By Mitch Ryan

The saltwater crocodile, Crocodylus porosus, is the largest living reptile on Earth, and it rules the waters from northern Australia to Southeast Asia. These massive reptiles are often called "salties" and can grow to incredible sizes, with large male saltwater crocodiles sometimes reaching lengths of up to 7 meters (23 feet).

By Talon Homer

If you came across an alligator in your yard (a totally plausible scenario in a place like Florida), you might think it's the biggest alligator you ever saw. But if it's not pushing 1,000 pounds and 15 feet in length, then it's likely not breaking any records.

By Yara Simón

One of the largest crocodiles ever was so big that one website called the species "bus-sized."

By Yara Simón

New fossil analysis illuminates the evolution of the modern American gator species, and why it may prefer freshwater sources - like your local golf course.

By Jesslyn Shields

Just how deceitful a creature is the sharp-toothed, swimming crocodile? Any more so than the other animals inhabiting our waters? They do cry, but it has nothing to do with insincerity.

By Kate Kershner

Crocodiles look a lot like dinosaurs, and they have certain similar characteristics. But are they related at all, or are the similarities all coincidence?

By Cristen Conger

Alligators are amazing animals that have been around for millions of years. These fearsome creatures are expert predators at the top of the food chain.

By Marshall Brain

You've heard this advice a million times, and perhaps it even brings you comfort when you're in gator territory. But is it really true?

By Alia Hoyt & Amy Hunter

To the average person, these two reptiles might look the same, but they're not. So what's the difference between alligators and crocodiles?

By Mitch Ryan