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[–] 2 points 3 weeks ago* (1 child)

https://usa.oceana.org/blog/shark-fact-friday-12-super-scales/

They’re highly directional and help with smooth swimming. And they’re basically thousands of little teeth rather than actual scales. They have the same structure as teeth too, a pulp core surrounded by dentin, with an enamel exterior.

They’re not razor sharp due to being so tiny, but are as coarse as sandpaper.

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