A marine biologist was able to help identify this cluster of sea urchins as the species Dermechinus horridus. The scientists can't determine a new species based on photos and videos alone.

Sea urchin or uni is definitely an acquired taste. But, what part of this unique shellfish are you actually eating when you ...

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 ...