Saltwater Aquariums

What is a starfish?

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2011-04-04 04:47:57

A starfish is a marine animal (echinoderm) that has five

or more arms, so it is shaped like a star. Because it is not a

fish, some now refer to it as a sea star. It has a hard,

craggy upper shell and hundreds of sticky "feet" on its bottom side

that let it attach itself to rocks.

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