Oregon has lost two-thirds of its kelp forests since 2010. Efforts to remove hundreds of thousands of purple urchins might ...

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 ...

A sea urchin fossil believed to be between 65 million and 100 million years old was found on Cromer beach in Norfolk.

As one of the world’s most diverse vertebrates, fish can come in a variety of shapes, colors, and sizes. With over 33,000 ...

Fish within the same species can vary widely in energy value, depending on regional ocean productivity, seasonal nutrient supply, life stage and size. While regional and seasonal differences reflect ...

Already, the new kelp is helping the ecosystem show glimpses of its former self. During a recent dive, a plump sunflower sea ...

Their fur is so soft it almost led to their extinction, but otters’ recovery has been a boon to Pacific kelp forests, a key ...

A sunflower sea star may be about to snack on some sea urchins in California. Brent Durand/Moment via Getty Images Before 2013, divers on North America’s west coast rarely saw purple sea urchins. The ...

(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) ...