The Crocodilia Order includes mostly large, predatory, semiaquatic reptiles such as crocodiles, alligators, and caimans. Caimans and alligators are members of the Family Alligatoridae. The Pantanal is full of the subspecies called Yacare caiman—approximately 10 million of them. Males can grow up to 10 feet long and weigh as much as 110 pounds, with females about half that size. They can live to be 50 years old and eat mainly aquatic animals such as snails and fish. Depending on their size, they are prey for herons, storks, and jaguars.