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Sea Urchins

There are over 900 sea urchin species and they can be found in almost all parts of any ocean. They are often characterized by protruding spines from their test.

1,393 Questions
Endangered, Vulnerable, and Threatened Species
Sea Urchins

How many sea urchins are left in the world?

Invertebrates
Whales
Otters
Sea Urchins

Are Sea Urchin's Poisonous?

Animal Health
Invertebrates
Sea Urchins

Do sea urchins eat phytoplankton?

Corals and Coral Reefs
Sea Urchins

Does sea urchins eat coral reefs?

Invertebrates
Sea Urchins

Can sea urchins see?