Sea otters are North America’s smallest marine mammal, weighing just 30 to 100 pounds, but their appetites are huge. They burn calories at three times the rate expected for their size, chomping on ...

Scientists have made an interesting discovery connecting sea otters to forest recovery, reinforcing their role as a keystone species. The researchers were then able to identify patterns, explaining ...

Despite recent efforts by sea urchin harvesters to reduce protections for southern sea otters under the Endangered Species Act, the species is still at risk, federal officials say. The fuzzy marine ...

John Keane receives funding from the Fisheries Research Development Corporation and the Tasmanian Government. Scott Ling receives funding from the Australian Research Council. Longspined sea urchins ...

There seemed to be a deadly plague lurking under the crystal blue waters of the Caribbean last year, killing sea urchins at a rate that hadn't been seen in decades. For months, no one knew what was ...

Purple sea urchins, beware: There’s a purple urchin-eating predator on the horizon — and its name is the sunflower sea star. That’s the plot line coming from a small upstart research facility in Moss ...

Ryder the Sea Otter would be very much at home at a seafood buffet. That’s because he is able to use tools to crack a shell and have a snack, a unique behavior for a marine mammal. “They will take ...

STORY: Every year, around 10 to 15 sea otter pups are found stranded off California's coast, often from storms that separate mother and offspring. Now, two aquariums in the state are teaming up in the ...

Since last year, long-spined sea urchins in the Caribbean Sea have been dropping dead with no known cause. Now, scientists may finally have found the culprit. The species, called Diadema antillarum, ...

Beneath sea urchins’ exterior spines, rounded skeletons called tests are jewels of color, texture, and symmetry. There are hundreds of urchin species, and they’re found in every ocean on Earth, from ...