More than a decade later, we helped uphold the U.S. Fish and Wildlife Service’s decision to end a program relocating sea otters from a large portion of Southern California waters, including a ...

UC Santa Cruz researchers are monitoring sea otters at Elkhorn Slough for potential impacts from the Moss Landing battery plant fire.

Wild sea otters are no longer such a rare sight along the eastern coast of Hokkaido, Japan’s northernmost main island. Experts reckon there are now more than 50 of the endangered marine ...

At Elkhorn Slough National Estuarine Research Reserve, a newly-reinvigorated population of native southern sea otters has eaten so many invasive European green crabs that researchers say the ...