What is this close-up picture? (WotsThat: Beetle elytra surface)

Question

What object is shown in this zoomed-in close-up photo?

RhodochrositeR · Accepted Answer

Beetle elytra surface. Beetle elytra have microscopic ridges and bumps that not only help them shed water like a tiny suit of armor, but these same structures inspired scientists to create self-cleaning paint and waterproof fabrics that work without any chemical coating. Some beetles can actually control the angle of these surface features through tiny muscles, allowing them to switch between being super water-repellent and slightly sticky depending on what they need at any given moment.

Answer: Beetle elytra surface

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