Submitted by akunis t3_120iqzc in todayilearned
Comments
akunis OP t1_jdhg07v wrote
I saw a question on a YouTube quiz that asked “which of these animals don’t have bones?” and shark was the correct answer. I thought that was bogus and was about to correct them in the comments, but didn’t want to look stupid so I googled it first and low and behold, I was wrong.
cubanesis t1_jdhfpiv wrote
Pretty sure they have at least two bones for the jaws, but everything else is cartilage.
-SaC t1_jdhgcav wrote
The jaws are still cartilage. They calcify over time, making them solid and dense, but it's still cartilage.
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.
wagnus_ t1_jdhnfip wrote
their teeth aren't bones?!
-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.
RudegarWithFunnyHat t1_je1vj8m wrote
Teeth are never bones
kai-omaga t1_jdhgdr5 wrote
That's cartilage as well.
RedSonGamble t1_jdk0rd5 wrote
Or souls
rfmodeler t1_jdhg7gc wrote
So what do they teach people in schools these days? I remember learning this in elementary school.
Ifyouhavethemeans t1_jdkrlwy wrote
Didn’t they tell us this in grade school?
wsf t1_jdl1356 wrote
...and squids don't have ankles.
[deleted] t1_jdhgmqf wrote
[deleted]
leadchipmunk t1_jdhh918 wrote
That's a myth. Sharks can get cancer. Mole rats, on the other hand, don't.
LoSazy t1_jdkn7u6 wrote
Sharks don't have hands.... checkmate
fatDaddy21 t1_jdlli8n wrote
TIL sharks don't have feet
Whalesongsblow t1_jdhfgqs wrote
Come on...