Sea urchins play a vital role in maintaining the delicate balance of coral reef ecosystems by feeding on algae that compete with corals for sunlight.

“In this photo, I’m examining some of the animals in my care. I work as an ecologist at the St John’s Island National Marine Laboratory, which is sited on a small island off the coast of mainland ...

The turquoise water of Hōnaunau Bay in Hawaii, an area popular with snorkelers and divers, is teeming with spiny creatures that threaten to push the coral reef “past the point of recovery,” new ...

KANAGAWA, Japan, July 25 (Reuters) - 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 ...

Sea urchins have no brains or hearts. But put them in the proximity of the unmistakable sunflower sea star, and somewhere in their pin cushion-like body, they sense trouble. That's the main finding of ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. While they have no backbone, sunflower sea stars (Pycnopodia ...

WASHINGTON (AP) — Scientists say they have at last solved the mystery of what killed more than 5 billion sea stars off the Pacific coast of North America in a decade-long epidemic. Sea stars – often ...