stackyFACTSBecause having rows of razor-sharp teeth in their mouths wasn't terrifying enough, sharks decided to wear them as a full-body suit.
Because having rows of razor-sharp teeth in their mouths wasn't terrifying enough, sharks decided to wear them as a full-body suit. Shark skin is entirely made of dermal denticles, which are tiny, backward-facing tooth-like structures covered in dentin and enamel. This evolutionary horror-show reduces drag and makes them stealthy, hydrodynamic torpedoes, while ensuring any creature rubbing them the wrong way gets instantly shredded.
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