Sea urchin killer spreads to new species, region

A parasite that devastated long-spined sea urchins in the Caribbean and Florida in 2022 has caused another die-off more than 7,000 miles away in the Sea of Oman.

Increased rainfall threatens UK sea urchins: Study

Sea urchins exposed to diluted seawater for long periods show signs of physical deterioration, according to scientists from the British Antarctic Survey, the University of Cambridge, and the Scottish Association for Marine ...

Brittle stars can learn just fine, even without a brain

We humans are fixated on big brains as a proxy for smarts. But headless animals called brittle stars have no brains at all and still manage to learn through experience, new research reveals.

page 1 from 20