Sharks are stealthy hunters and the secret is in their skin. Shark skin is covered by dermal denticles, that are more like teeth than fish scales. These tiny V-shaped scales decrease drag and turbulence, allowing the shark to swim at high speeds without making much noise. #sharkweek | Science Channel
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While shark teeth tend to get a lot of attention, it’s the teeth on their skin that you should brush up on! Shark skin is covered in tiny, flat pointed scales that are called dermal denticles—which literally means skin teeth. If you look at a shark’s skin under a microscope, you’ll see that the scales are a series of overlapping teeth that result in a rough texture. These pointed scales reduce drag on sharks as they swim, making them stealthy and fast as they cut through the water. This jagged t
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Dermal denticles are an extremely effective adaptation that provide so many benefits to sharks. Dermal denticles give a thicker layer of protection to sharks, making it harder for predators to bite through their skin. Additionally, the shape of the denticles will deter microorganisms from latching on to and building up on a shark's skin. Dermal denticles are so unique that they have inspired a lot of biomimicry from swimsuit designs to making boats faster. Shark skin was even used as sandpaper w
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