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Lv 7
? asked in Science & MathematicsZoology · 8 years ago

how do the crocodilians sink and rise?

Hello, Yahoo community. I have always wondered how alligators and crocodiles sink and rise. When I was a kid, textbooks tried to tell us that it's done by swallowing stones but I never bought that. Is it accomplished by muscular contraction? Ten points await the best answer!

3 Answers

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  • Tim D
    Lv 7
    8 years ago
    Favorite Answer

    I think stomach stones are just an aid to grinding up food. Crocodilians rely on muscles; they just dive down and then head back up, using their tails as propulsive organs.

  • Matthew
    8 years ago

    I remember my teacher saying that they compressed the air in their lungs, she was a dinosaur though. Don't trust my answer sorry its just what she said

  • I Support Malala
    Lv 4
    8 years ago

    I think they blow out air.

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