California’s sea otters were once on the brink of extinction. But even after half a century of protection from the Endangered Species Act, their population is still at risk.

With conservation efforts, California’s sea otter population has grown to about 3,000, still limited to the Central Coast, according to the Monterey Bay Aquarium.

And we did a high and a low estimate of how many green crabs can the sea otter population actually consume over the course of the year. And it's somewhere between 50,000, but maybe up to 120,000 ...

Investigators for this study used data on otter foraging to calculate that up to 120,000 green grabs could be consumed each year by the current sea otter population. Related Articles ...

Some coastal wolves in Alaska have toxic levels of mercury in their bodies after shifting from a terrestrial diet of deer and ...

A recent study found sea otters are eating thousands of green crabs at a California reserve, reducing the invasive species’ population.

With the Southeast Alaska sea otter population now at around 25,000, Douville hunts, in part, to reduce the otter population and restore local stocks of clams, geoduck, sea urchin, ...

California's sea otters were once hunted to the brink of extinction. ... It's no wonder their population has dipped below 3,000 in recent years.

ELKHORN SLOUGH — Although sea otters are an unofficial mascot of the Monterey Bay area and popular among tourists and locals ...

Otters As invasive green crabs wreak havoc on California's estuaries, a new study has found that a restored sea otter population might be the solution. Special Series The Brief.

California's sea otters were once hunted to the brink of extinction. ... It's no wonder their population has dipped below 3,000 in recent years.