this post was submitted on 21 May 2025

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Teeth first evolved as sensory tissue in the armored exoskeletons of ancient fish, fossil scans find (phys.org)

submitted 5 days ago by General_Effort@lemmy.world to c/science@lemmy.world

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WHAT?!

Original paper: https://www.nature.com/articles/s41586-025-08944-w

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[–] lars 1 points 4 days ago (1 children)

swim bladder

I beg your pardon

[–] General_Effort@lemmy.world 1 points 4 days ago

Swim bladders evolved from lungs. You wouldn't think that something that makes the fishies better ocean divers originally evolved to let them breathe air.