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 ...

Longspined sea urchins are native to temperate waters around New South Wales. But as oceans heat up, their range has expanded more than 650km, through eastern Victoria and south to Tasmania. Their ...

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 ...

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 ...

Researchers examining a century of ocean maps made an exciting discovery linking sea otter populations to kelp forests: Where sea otters thrive, so do these critical underwater habitats. The research ...

In parts of the ocean where sea otters face stark competition for their favorite kinds of food, some otters are getting by with the help of tools — like rocks and even glass bottles — that let them ...

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 ...

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 ...