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Yes.Sea urchins are consumers, which means they must eat other organisms to survive. They feed mainly on algae, but also eat mussels, sponges, brittle stars and other invertebrates.
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13y ago
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10y ago

yes, as a matter of fact sea urchins can eat sea stars, I once had both a sea star and a sea urchin in a tank together and when I woke up the next morning, there wasn't any of the sea star left! and I was reallysad.

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15y ago

The purple sea urchin eats kelp and is getting to be something of a scourge.

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10y ago

Nope, I believe not.

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14y ago

Yes they do.

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Q: Do sea urchins eat snails
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