California's sea otter numbers continue slow climb

California sea otter numbers are up, according to the latest population survey led by federal, state, and UC Santa Cruz scientists. The reasons: more pups and the addition of San Nicolas Island sea otters to the population ...

Earthworm invasion

Beavers reshape landscapes with their dams. Wolves control elk populations. Sea otters protect kelp forests by eating sea urchins. These are what ecologists call "keystone" species: critters that control an ecosystem and ...

Sea otters promote recovery of seagrass beds

Scientists studying the decline and recovery of seagrass beds in one of California's largest estuaries have found that recolonization of the estuary by sea otters was a crucial factor in the seagrass comeback. Led by researchers ...

Study reveals disease-causing parasites in dead otters

Research undertaken by the Cardiff University Otter Project has revealed a number of disease-causing parasites in the bodies of dead otters. The findings were revealed at the BBC Summer of Wildlife event held at the National ...

NASA opens new era in measuring western US snowpack

(Phys.org) —A new NASA airborne mission has created the first maps of the entire snowpack of two major mountain watersheds in California and Colorado, producing the most accurate measurements to date of how much water they ...

Sea mammals find US safe harbor

(Phys.org) —In 1972, a U.S. Senate committee reported, "Many of the great whales which once populated the oceans have now dwindled to the edge of extinction," due to commercial hunting. The committee also worried about ...

Are chemicals damaging the health of male otters?

A new report has highlighted serious concerns for the health of otters in the UK. The otter is one of the country's best loved predator species, but research indicates that they may not be in the best of reproductive health.

Rare San Francisco river otter stumps researchers

For the first time in decades, a river otter has made San Francisco its home, taking up residence in the ruins of a 19th Century seaside bath near the Golden Gate Bridge.

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