A mass sea urchin die-off has pushed Canary Islands populations to historic lows, with scientists warning of long-term reef ...

Sea urchins are dying off worldwide from an unknown disease, threatening reef balance and sparking urgent efforts to identify the pathogen.

A sudden, unexplained mass die-off is decimating sea urchins around the world, including catastrophic losses in the Canary ...

The audio version of this article is generated by AI-based technology. Mispronunciations can occur. We are working with our partners to continually review and improve the results. Urchins are gathered ...

It used to be thought that sea urchins only had a primitive nervous system, but new research has found that they are far more complex than that. The entire body of a sea urchin is what researchers are ...

Biologists thought that marine heat waves lowered urchin reproduction only at lethal temperatures. A new study shows reproductive shutdown even earlier. Sea urchins are a key but often destructive ...

The pointy shell of sea urchins hides a remarkably complex neural network that resembles the brains of vertebrates, new research suggests. Reading time 2 minutes When it comes to taking hardcore ...

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 ...

Stunning microscopic footage has captured the moment a translucent baby sea urchin crawled across a bed of red algae. The video earned fifth place in the annual Nikon Small World in Motion competition ...

What you can see in this YouTube clip is very different from most of the underwater footage that you will come across online. It features a diver picking up sea urchins using a metal tool and breaking ...