Two underwater sea lilies were eaten and regurgitated around 66 million years ago. They were preserved as fossilized vomit.

Sea urchins feed on kelp and in their march south ... Overseas research on different urchin species has focused on predators ...

KANAGAWA--In Japan, researchers are feeding vegetables to hungry sea urchins - a popular sushi ingredient - to try and stop them from eating dwindling stocks of ocean seaweed. The country is ...

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 farm is expected to have environmental benefits, from reducing emissions that cause global warming to easing "sea desertification" brought on by rising sea temperatures.