Starfish or Sea Stars are echinoderms. About 1,500 living species of starfish occur on the seabed in all the world's oceans, from the tropics to subzero polar waters. They typically have a central disc and five arms, though some species have more than this. The aboral or upper surface may be smooth, granular or spiny, and is covered with overlapping plates.

Starfish or Sea Stars are echinoderms. About 1,500 living species of starfish occur on the seabed in all the world's oceans, from the tropics to subzero polar waters. They typically have a central disc and five arms, though some species have more than this. The aboral or upper surface may be smooth, granular or spiny, and is covered with overlapping plates.

blue starfish                                                                                                                                                      More                                                                                                                                                     More

19 bizarre and beautiful starfish species

Echinoderm- sea star (Fromia monilis) and sea anemone.. starfish echinoderms invertebrates one tropical vertical sea anemone.  © Brandon Cole.

Echinoderm- sea star (Fromia monilis) and sea anemone.. starfish echinoderms invertebrates one tropical vertical sea anemone. © Brandon Cole.

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