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SlideshowReport

Scorpions, Spiders and Sharks: Electron-Microscope Images

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Bull Shark

This image is of the skin of the bull shark, an aggressive species that can tolerate fresh water and is thought to be responsible for many near-shore attacks. Shark skin is made of tiny scales known as dermal denticles that can be seen here. The scales give shark skin a very rough, sandpaper-like texture, make it very strong. The scales help streamline the shark by moving water through the grooves in the scales to reduce turbulence.
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