Even moderate heat waves can depress sea urchin reproduction along the Pacific coast

Biologists thought that marine heat waves lowered urchin reproduction only at lethal temperatures. A new study shows ...

Sea Urchins Are Basically Brains Covered in Spikes, Study Finds

The pointy shell of sea urchins hides a remarkably complex neural network that resembles the brains of vertebrates, new research suggests.
EDP 24

Sea urchin fossil found on Cromer beach in Norfolk

A fossil believed to be between 65 million and 100 million years old was found on a Norfolk beach. The fossilised sea urchin was discovered by Mark Fairclough at Cromer on Wednesday. Mr Fairclough ...
Mongabay

California’s kelp forests struggle to recover a decade after collapse

More than 10 years after unusually high water temperatures in the Pacific Ocean killed off Northern California’s aquatic kelp forests, the region has still not recovered, reports David Helvarg, ...
SFGate

How sea star wasting disease transformed the West Coast’s ecology and economy

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Rebecca Vega Thurber, University of California, Santa Barbara (THE CONVERSATION) ...