Our special video series looks at some of the more unique shells at the Bailey-Matthews National Shell Museum on Sanibel, ...

The sharp spines of a sea urchin are a deterrent to most predators ... Unfortunately, that beautiful shell has also made it a target of commercial operations who sell the shells to collectors.

HIRONO, Iwate Prefecture--Sea urchin are a culinary delicacy, but because their shells are often seen as too difficult or costly to recycle, they end up getting tossed out in bulk. But a local ...

The Dane finds a magic shell, which, when rubbed ... sometimes called tongues—the sea urchin’s wobbly gonads. Karoline O.A. Pettersen Sea urchins with their skin and spines removed.

A mountain of sea urchin shells, about 5000 specimens, was found in recent days by the Barracellare Company on the northern coast of Alghero. The echinoderms had been emptied, probably to obtain ...