A rapid spread of millions of sea urchins is threatening vital kelp forests, which remove pollutants from water.

With their pointy spines, sea urchins are not warm and fuzzy marine animals that people want to snuggle up to. While they are ...

These breeding grounds for fish are under siege from red turf algae, sea urchins, storm surges, warming waters and climate ...

Researchers warn this transition isn’t unique to the state. Expert sounds alarm as harmful species spread in US waterways: ...

While the marine heatwaves killing the kelp ecosystem were alarming on their own, the researchers have discovered a new ...

The sea otter pup was tiny, probably less than 2 weeks old, alone in Morro Bay on an October morning earlier this year. A ...

Nestled in the rocky, shallow areas of bays, tide pools, and kelp forests in Central and Northern California is a species of abalone which has been an important part of local life for centuries. Red ...