When the tide rolls in and the forest canopy begins to thin, coastal foraging tours take on a new kind of magic. Visitors who ...

As sea stars disappeared, the purple sea urchin population exploded, increasing an astonishing 10,000% from 2014 ... all of which are linked in the complex kelp forest food web of who eats who.

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 ...

SAN DIEGO — A California aquarium‘s Halloween spirit runs deep – 12 feet under, to be exact. The Birch Aquarium at Scripps Institution of Oceanography added a fake skeleton from Home Depot to its ...

(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) ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. The photographer identified the species as Arbacia lixula — a black sea urchin. As juveniles they ...

On a new free-diving tour in South Africa, one traveler comes face-to-face with seals, shipwrecks, and the limits of her own ...