Learn how starfish got their shape after a complicated evolutionary process, starting with an ancestor that lived 500 million ...

This seems to have solved the mystery of how the starfish got its arms. But it doesn’t necessarily answer the ‘why’. Imran ...

Sea cucumbers spend their lives prowling the ocean floor, scavenging for food and generally minding their own business. We ...

Sea cucumber removal increased tissue mortality of Acropora pulchra by ~370% and colony mortality by ~1500%." In other words, we really can't understate the importance of sea cucumbers in the web ...

Residing at depths of 330 to 19,000-plus feet below sea level, they are suspension feeders, which means they use their six to 16 spine-covered arms to filter water and capture food as it drifts by.

Sea cucumbers are in the phylum Echinodermata with sea stars, sea urchins and brittle stars. All echinoderms start with spiny skin (thus the Latin name echinoderm, which means hedgehog-like).

Not five or ten arms, ... The creature was related to modern sea creatures like sea cucumbers, urchins, and of course starfish, but it had some unique features that clearly set it apart.

The Antarctic strawberry feather star is a sea creature with 20 so-called "arms" — some bumpy, some feathery — and can altogether be up to eight inches long, Greg Rouse, a marine biology ...

The new monster is related to starfish and sea cucumbers but little else is known. ... New species of sea monster with 20 arms is found lurking in the frozen seas around Antarctica.

These animals belong to the phylum Echinodermata—other members of this group are starfish, sea urchins, and sea cucumbers. ... Of the eight species, six have 20 arms and two have 10 arms.

One of these apparent discoveries is an invertebrate that somewhat resembles a strawberry, albeit with 20 arms. ... sea cucumbers, and other echinoderms, but not too much is known about them.