There are about 1,800 species of sea stars. They are among the most easily-recognizable marine creatures, although they come in a variety of shapes, sizes and colors. Sea stars (commonly called starfish) are classified in the Phylum Echinodermata, meaning they are related to sea urchins, sand dollars and sea cucumbers.
While some appear smooth, they all have spines covering their upper surface and a soft underside. If you gently turn over a live sea star, you'll see its tube feet wiggling back at you. These iconic marine animals are fascinating creatures. Learn more about them through photos and facts in this image gallery.
|Forbes' Sea Star||Basket Star||Northern Basket Star||Deep-Sea Sea Star|
|Underside Of a Sea Star||Sea Star Regenerating Arms||Sea Stars and Sea Urchins||Brittle Star|
|Northen Sea Star (Asterias vulgaris)||Sea Star, Showing Tube Feet||Sea Star, Showing Tube Feet|
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