You may have learned that one way to tell crocodiles and alligators apart is whether their bottom teeth are showing. But did you know that both alligators and crocodiles have more teeth growing inside ...

Robert Irwin shared a picture of a "monster tooth" from a crocodile's mouth on his Instagram page. The TV presenter, 17, who works at Australia Zoo in Beerwah, Queensland, posted the snap on June 10, ...

Giant mosasaurs, once thought to be strictly ocean-dwelling predators, may have spent their final chapter prowling freshwater ...