If you don’t want crocs in your back yard watch for gators.

Mangrove estuaries are home to the rare American crocodile. While there are only two living species of alligators, there are over a dozen species of crocodiles found around the world.

Adult crocodiles can live in salt water, new hatchlings and young crocodiles actually need brackish water — a mixture of salt and fresh water. As sea level rises, it makes the water…