Crocodiles have a membrane that holds their fleshy tongue in place at the floor of their mouth, making it hard to move. As they mostly remain submerged in water, their tongue along with the palatal valve located at the back helps keep their throat closed, thereby preventing water from entering the airways.
Crocodile are true carnivores, eating no plant materials. In their native Africa, they prey upon and consume many large mammals, catching them when they stop to drink or cross rivers. Crocodiles do in smaller prey species with a quick snap of their powerful jaws. Larger prey might succumb to a series of deep, crushing bites.
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