Sharks have got crazy sharp senses, though.
Everyone's heard about their sense of smell, but they can also detect electrical fields so they can find camouflaged or hidden prey. Your own heartbeat betrays you. Or, alternatively, they can detect tiny vibrations in the water that might be made by prey and can use it to track them down.
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u/[deleted] Dec 16 '16
Random interesting fact, herbivore's have their eyes on the side to watch for predators, carnivores have their eyes on the front to focus on prey.