USS Seawolf, USS Connecticut, and USS Jimmy Carter—are powerful yet rare nuclear-powered fast-attack submarines. Built as ...

Contrary to popular belief, it seems that starfish have no bodies, and are best described as just a head crawling along the ...

Researchers have identified two starfish species in ancient ritual offerings unearthed 33 years ago in Tula, Mexico.

Echinoderm means “spiny skin” in Greek. Echinoderms are found in ocean ecosystems worldwide, from rocky shores to the deep sea. Animals in this phylum are characterized by radial symmetry as ...

Not hundreds, not thousands, but perhaps tens of thousands of these animals that scientists collectively call "the echinoderms". It's a great name, derived from the Greek for "hedgehog", or "spiny ...

The diversity and abundance of echinoderm fossils is reflected in the Museum's large, world-class collection. Fossil echinoderms are numerous, due in part to the fantastic preservation potential of ...

The sea biscuits found in the Carolinas are fossils of extinct echinoderms. The rounded domes look like a version of their relative, the sand dollar, but they no longer live in the Carolinas.

The 452-million-year-old limestone slab shown here captures an Ordovician menagerie, including various echinoderms and trilobites, such as Ceraurus, the turtle-like form on the left edge.

Like all echinoderms, echinoids have a skeleton composed of calcitic plates embedded in their skin (their skeleton is internal, like ours). This skeleton has a very particular structure, termed ...

Seafood is a collective term that refers to fish, mollusks, crustaceans, and echinoderms. Seafood, like salmon, clams, and ...

Other fossils that have been found at Trenton Falls include concularia, echinoderms, crinoids, cephalopods, gastropods, and bryozoans. More information can be found on the town of Trenton website.

Animals with body architecture ranging from the cellular (i.e., sponges) to organ system (i.e., arthropods, echinoderms, and chordates) respond to stimuli from the internal and external environment.