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.

- they lack a hard endoskeleton unlike other echinoderms. - tube feet have been modified into tentacles around mouth which aid in feeding. - 5 rows of tubercles run from mouth to anus indicate ...

The recent Invertebrate Wars reminded me of spectacular, but often ignored, group of gastropods. The parasites! This is a group that I have totally geeked out on in the past. In my previous work I ...

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 ...

Fossil echinoderms, including the common Cambrian and Ordovician echinoderms figured here (Fig. 1 from Deline, et al., 2021; request permission to use here) have a rich and diverse fossil record ...

It was a long, hard, and tumultuous battle, but the clash of the titans that began here at The Intersection--that will go down in science blogging history as the Great Marine Invertebrate Wars--has ...

All the latest science news on echinoderms from Phys.org. Find the latest news, advancements, and breakthroughs.

Letter Published: 05 August 1967 Pentamerism and the Calcite Skeleton in Echinoderms DAVID NICHOLS Nature 215, 665–666 (1967) Cite this article ...

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 ...