Sand dollars' star-stamped skeletons are widely ... sea cucumbers, and sea stars (aka starfish)—although the latter falls into a different class. 4. They Have Many Nicknames In the U.S., the ...

But starfish—as well as sand dollars and sea anemones—have radial symmetry, with identical segments of their body radiating out from a central point. In particular, starfish, also called sea ...

Jellyfish, starfish, sand dollars and the occasional octopus wash up on South Carolina beaches all year round. For these invertebrates, sitting exposed to the sun and air will eventually kill them.

That's right—starfish as a name is misleading. Like sand dollars and sea urchins, starfish do not have backbones, which means they’re invertebrates. Fish have backbones, which makes them ...

Sand dollars and starfish are relatives and play an important role in the beach ecosystem. When these creatures burrow in the sand, they bring oxygen to other organisms that live there.

Keywords echinoderms, sea stars, sea urchins, sand dollars, radial symmetry, spiny skin, water vascular system, locomotion, feeding habits, regeneration, reproduction, scientific research Email us ...