On a small island near Gustavus, a wolf pack has decimated the local deer population – and started feeding on sea otters instead. The shift underscored coastal wolves’ adaptability. But then one died.

Scientists show that wolves that are eating sea otters in Alaska have much higher concentrations of mercury than those eating other prey such as deer and moose. In late 2020, a female coastal wolf ...

Some coastal wolves in Alaska, U.S., have toxic levels of mercury in their bodies after shifting from a terrestrial diet of deer and moose to a marine diet heavy with sea otters, new research finds.

In late 2020, a female coastal wolf collared for a study on predation patterns unexpectedly died in southeastern Alaska. The wolf, No. 202006, was only four years old. “We spent quite a bit of time ...