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 now-extinct sea cow species, Salwasiren qatarensis, was discovered thanks to an examination of 21-million-year-old ...

Sea urchins are ecosystem engineers, the marine equivalent of mega-herbivores on land. By grazing and shredding seaweed and seagrass, they control algal growth and promote the survival of slow-growing ...

Sea otters are one of nature’s most fascinating creatures, beloved for their playful personalities and critical role in marine ecosystems. From their dense fur to their impressive tool use, these ...

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 ...