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How does smell work underwater?

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Sharks are a predator that are notorious for their highly developed sense of smell. They can smell blood in the water at a level of parts per million. Water is a particularly good medium for the distribution of smell. read more

A shark sense isn't so different from any of our senses, a shark sense is just sharper underwater. See more about shark sense and how each works. read more

Smell has played an important role throughout human existence in helping us sniff out food, identify predators, communicate socially (such as deciding who’s attractive or trustworthy based on their unique body odor), and navigate the world. read more

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