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

Scientists are retracing the journeys of century-old Antarctic expeditions to discover how the Earth has changed.

Starfish are echinoderms, a form of invertebrate marine animals known for radial symmetry and having spiny skin. Researchers said most animal species have similar genetic structures, prompting ...

Global contribution of echinoderms to the marine carbon cycle: a re-assessment of the oceanic CaCO3 budget and the benthic compartments. Ecological Monographs, 2009; 091222124538045 DOI: 10.1890 ...

Echinoderms are present in the ocean in great numbers. According to Pawson, sea cucumbers alone may comprise more than 90% of the weight of animals on the sea floor. Emma Saaty, NMNH ...

Most echinoderms, including starfish, have a five-rayed symmetry. They're closely related to another invertebrate group, the acorn worms, and to vertebrates (animals with backbones).

Some of us never grow up. In fact I am writing this now in my Aquaman pajamas while laying on Return of the Jedi bedsheets*. Unlike my childlike tendencies, for other species sometimes delayed growth ...

All echinoderms start with spiny skin (thus the Latin name echinoderm, which means hedgehog-like). They have radial symmetry, meaning they are the same shape all around, with mouths in the middle ...

Like sea stars, ancient echinoderms nibbled with tiny tube feet Rare 430-million-year-old fossils preserve signs of these tentacle-like limbs ...

All echinoderms start with spiny skin (thus the Latin name echinoderm, which means hedgehog-like). They have radial symmetry, meaning they are the same shape all around, with mouths in the middle ...