Learn more about how one rescue diver–turned-conservationist is working to bring a thriving sea otter population back to the ...

After a successful one-day poll, the Monterey Bay Aquarium has announced the name of its newest sea otter pup. Did your favorite win?

After missing from the Oregon coast for more than a century, sea otters are getting a step closer to staging a comeback. Local tribes and nonprofits have received a $1.56 million grant to lead the ...

The orphaned sea otter who became a foster mother to 15 pups. By Malia Wollan No one knows how Rosa was orphaned in September 1999, in Santa Cruz County, Calif. She was nameless then, just 4 weeks ...

Both otters were rescued in California as pups. Photo courtesy of Terria Clay/New York Aquarium The otters, now 10 and 13 years old, lived in several accredited zoos and aquariums before they made ...

It’s Sea Otter Awareness Week, which has been recognized for more than two decades. It started as a way to inform people about the vital role these animals play in coastal marine ecosystems.

Otter 841, California’s most ornery sea mammal, has returned to waters off Santa Cruz. Authorities warn surfers and swimmers to steer clear of the creature.

California sea otter populations have rebounded in recent decades. New research finds that by feasting on shore crabs, these otters are helping to protect their coastal marsh habitat against erosion.

Sea otters are one of the few animals that use rocks and other objects to access their food, and a new study has found that individual sea otters that use tools—most of whom are female—can eat larger ...

The multi-decadal study, carried out in central California, could hold lessons for British Columbia, whose sea otter population was nearly exterminated through decades of poaching.

Researchers discover sea otters are able to withstand very cold water because of unique skeletal muscle. This finding was published in the journal "Science." ...

Sea otters are slowing down the erosion of salt marshes, thanks to their rapacious appetite for crabs, according to new research. But it took some sleuthing to figure this out. Marine ecologist ...