What the Heck Is That? Ordinary Things That Look Insane Microscopic!

Shark Skin Is Nature’s Chainmail

Shark skin might seem smooth in the water but zoom in, and it’s a whole other story. When seen through a lens, it reveals tiny, tooth-like scales called dermal denticles. Each one is shaped like a miniature ridged tile, and they all overlap like armor. This setup doesn’t just look cool—it actually reduces drag and helps sharks glide through the water with less resistance.

Some high-tech swimsuits even copy this design. The texture also makes it hard for parasites to latch on, which is a genius move. So, it’s not just skin—it’s basically a custom-built, self-cleaning speed suit from the ocean.

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