Sea otters help kelp forests recover by controlling sea urchins, but their impact varies. In British Columbia, recovery was ...

Unlike most marine mammals, sea otters are primarily insulated by fur, not blubber. In fact they have the densest fur in the animal kingdom. Sadly that thick, resplendent coat has also given otters ...

Because of their high metabolic rates, sea otters are especially vulnerable to disturbances that can increase their energy ...

Adorably fuzzy sea otters aren’t just cute. The marine mammals serve a crucial role, helping to restore the giant kelp forests they rely on by removing their top predators, the sea urchins.

New modeling method helped researchers understand why kelp forests returned more slowly in Southern California than in British Columbia.

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 ...

Sea otters in California reach 50 to 70 pounds, while those in Alaska can weigh up to 100 pounds. In contrast to river otters , sea otters must survive amid the chilly waters of the Pacific Ocean.

IF YOU are a fan of sea otters, you may have observed – either in real life or in a nature documentary – how these adorable, furry critters are masters at using tools. Otters are known to use ...

New research in The Journal of Wildlife Management reveals how human activities affect the behavior and energy expenditure of southern sea otters.