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cubanesis t1_jdhfpiv wrote

Pretty sure they have at least two bones for the jaws, but everything else is cartilage.

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-SaC t1_jdhgcav wrote

The jaws are still cartilage. They calcify over time, making them solid and dense, but it's still cartilage.

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cubanesis t1_jdhl0zz wrote

Hmm. Good to know. I was told when I was a kid the jaw was the only bone and that is why there are no megalodon fossils other than the jaws.

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wagnus_ t1_jdhnfip wrote

their teeth aren't bones?!

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-SaC t1_jdhnvu1 wrote

Closest things to it that they have, albeit an ectodermal organ. Teeth aren't bones as (for simplicity) they can't heal themselves, unlike our skelingtons.

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