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.
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.
https://knowyourmeme.com/memes/people/branson-reese