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 ...

Just by eating sea urchins and destructive shellfish, sea otters are keeping kelp forests healthy and coastal erosion at bay.

SANTA BARBARA — Claiming that federally protected sea otters continue to overgraze commercially important urchin beds, a group of fishermen wants a Los Angeles judge to enforce a “no otter ...

Petition to delist southern sea otters filed by sea urchin harvesters. In their March 2021 petition to delist the southern sea otter from the federal Endangered Species Act, the California Sea ...

Petition to delist southern sea otters filed by sea urchin harvesters. In their March 2021 petition to delist the southern sea otter from the federal Endangered Species Act, the California Sea ...

Comparing kelp density with otters and kelp density without otters, they found that “sea otters have a positive indirect effect on kelp biomass by preying on sea urchins, a kelp grazer.” When otters ...

Some otters rely on tools to bust open hard-shelled prey items like snails, and a new study suggests this tool use is helping them to survive as their favorite, easier-to-eat foods disappear.

The zoo will celebrate Sea Otter Awareness Week Sept. 22-28 with a full slate of otter-themed games and conversations spotlighting some of the ocean’s most charismatic creatures. Volunteers and ...

Aquarium researchers found that in Northern and Southern California, within the last century, the kelp forest has declined drastically by 63 and 52 percent, respectively. Meanwhile, in Central ...

The infamous surfboard-stealing sea otter of Monterey Bay is still on the run – but her strange behaviour is drawing attention to the many challenges this species faces.

Over the next several decades, sea otter numbers rose to around 30,000. By 1959, the charismatic animals were starring in a nature film, " The Sea Otters of Amchitka ." ...