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 ...

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 ...

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 ...

Research divers assessing sea urchin spread off St Helens in Tasmania’s northeast. Matt Testoni Correcting an imbalance of nature. Rock lobsters are a natural predator of urchins.

Sea otters were hunted to local extinction more than 100 years ago. Their absence left a hole in Oregon Coast ecosystems that's being felt now more than ever.

MONTEREY BAY, CALIF. — The 2½-week-old sea otter cried for help. Stranded in a tide pool after heavy winds and strong surf near the edge of the bay, it was ashore and alone. When Sandrine Hazan ...

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 ...

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 ...

The first infected sea otter, a female, was found on a beach in San Simeon in February 2020. She was still alive but appeared thin and displayed severe neurological symptoms; researchers said she ...

Bringing back sea otters may help save kelp forests off Northern California coast 03:19. SAUSALITO – The health of the ocean off the Northern California coast is in trouble, as biologists have ...

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