![Now that's crocodile rock! Deadly reptiles SING to each other like birds...and dinosaurs may have done the same | Daily Mail Online Now that's crocodile rock! Deadly reptiles SING to each other like birds...and dinosaurs may have done the same | Daily Mail Online](https://i.dailymail.co.uk/i/pix/2015/08/11/18/2B46FB2E00000578-0-image-a-3_1439314828403.jpg)
Now that's crocodile rock! Deadly reptiles SING to each other like birds...and dinosaurs may have done the same | Daily Mail Online
![The crocodile's tongue has a membrane that holds it in place on the roof of their mouth so it does not move. An alligator's tongue has a piece of flesh at the The crocodile's tongue has a membrane that holds it in place on the roof of their mouth so it does not move. An alligator's tongue has a piece of flesh at the](https://i.redd.it/the-crocodiles-tongue-has-a-membrane-that-holds-it-in-place-v0-u5a9zea0bc0a1.jpg?width=800&format=pjpg&auto=webp&s=fc2b757605bd0eb2fb727aedd253fb1f9849bc5a)
The crocodile's tongue has a membrane that holds it in place on the roof of their mouth so it does not move. An alligator's tongue has a piece of flesh at the
![Everglades on X: "Did you know that the back of the alligator's throat is covered by an oversized palatal valve called a glottis? That's why you usually can't see down their throat! Everglades on X: "Did you know that the back of the alligator's throat is covered by an oversized palatal valve called a glottis? That's why you usually can't see down their throat!](https://pbs.twimg.com/media/DppEL55W0AIM-NS.jpg)
Everglades on X: "Did you know that the back of the alligator's throat is covered by an oversized palatal valve called a glottis? That's why you usually can't see down their throat!
![Crocodiles have special flaps called palatal valves in the back of their mouths which allow them to open their mouths underwater without drowning. : r/Awwducational Crocodiles have special flaps called palatal valves in the back of their mouths which allow them to open their mouths underwater without drowning. : r/Awwducational](https://i.redd.it/sz86919w1bnz.jpg)