this post was submitted on 21 May 2025
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[–] gofsckyourself@lemmy.world 6 points 1 week ago* (last edited 1 week ago) (1 children)

I wonder if this was how sharks got their skin teeth

[–] cjoll4@lemmy.world 3 points 6 days ago (1 children)

Holy crap. I'd heard of placoid scales but had no idea they were homologous to teeth. Thank you for sharing.

[–] gofsckyourself@lemmy.world 3 points 6 days ago

It's just a cool piece of information that it's impossible not to share.