New research has uncovered a crucial clue to understanding the spread of "barrens" in the Great Southern Reef, which are threatening the reef ecosystem. "Barrens" are areas of low, or no, seaweed ...

Purple sea urchins, beware: There’s a purple urchin-eating predator on the horizon — and its name is the sunflower sea star. That’s the plot line coming from a small upstart research facility in Moss ...

This study measured the growth rate of coral reefs in Honaunau Bay, Hawaii, using on-site data gathering and aerial imagery. Researchers found that the reefs are being eroded by sea urchin populations ...

'For the first time in history, there are no new juvenile urchins being recruited across several Canary Islands,' a researcher said.

A sudden, unexplained mass die-off is decimating sea urchins around the world, including catastrophic losses in the Canary Islands. Key reef-grazing species are reaching historic lows, and their ...