One of the main attractions at the new Daytona Aquarium & Rainforest Adventure is the Reptile Den, where guests can see an American alligator swimming in its enclosure. But just a few feet away ...

Opinions expressed by Forbes Contributors are their own. I write about the world of biology. Crocodilians—semiaquatic reptiles comprising crocodiles, gharials, alligators and caimans—are ...