Sea urchins are the same as starfish

STARFISH and sea urchins might look fairly different but are quite similar.

STARFISH and sea urchins might look fairly different but are quite similar.

Both of move around on tiny tube feet and their internal structure is the same.

In fact, you can think of a sea urchin as a starfish that has been rolled up and joined along the edges of its "arms". - Encyclopedia of Questions and Answers, Bounty Books

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