IT has long been known that certain littoral echinoids habitually cover the parts of their body that are exposed to light by fragments taken from their surroundings. Some have interpreted this as ...

Considered a delicacy in several parts of the world, sea urchin, or uni in Japanese, is prized for its unique flavor. But the cost of the gonads — the orange tongues found inside an urchin ...

The sea urchin population in many coastal areas is on the increase, and this could have a negative impact on recreational activities associated with the coast. In certain areas, hundreds of these ...