Sea urchins graze on and clean a type of algae that competes with coral, and their decimation is a big reason for the decline of the coral reef ecosystem in the Caribbean. Sea urchins play an ...

Scientists have made an interesting discovery connecting sea otters to forest recovery, reinforcing their role as a keystone species. The researchers were then able to identify patterns, explaining ...

Since early 2022, sea urchins have been mysteriously dying off across the Caribbean. Now scientists say they have identified the main culprit: a type of relatively large, single-celled marine ...