Learning about gator teeth and tongues with Big Mac!! Crocodilians are polyphyodonts, meaning they can replace their teeth continuously throughout life. Each tooth sits in a socket and has a replacement tooth forming beneath it, kind of like a conveyor belt. A crocodilian can go through thousands of teeth in its lifetime. Replacement slows with age, unlike us diphyodonts, with just baby and adult sets. They also have a muscular tongue they use to manipulate things in their mouth, but it’s attach