
Shark teeth: The sharp bits of a squishy animal
Brains On! Science podcast for kids
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Sharks Shop at Fins
Sting rays would eat all the crabs and all the clams. Sharks shop at fins, they keep the balance of the food chain so lots of animals stay in the store. If there's too much algi in part of the ocean, it uses up a lot of oxygen which makes it harder for coral, reefs and others to survive.
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