endangered species

The Olympic marmot is endemic to the Olympic Peninsula — it is found nowhere else in the world. Now, the federal government is considering listing it as an endangered species.

Washington state and federal wildlife officials, tribes and a nonprofit are using new tools in an intensive research project to investigate how harbor seals impact endangered salmon.

One of the rarest butterflies in Washington is now a candidate for state protection as an endangered species. The Island Marble Butterfly was federally listed as endangered in 2020.

The eagles find themselves in a sort of environmental updraft since the early 2000s, when the federal government took the thriving birds off its endangered species list.

Bull trout have populated the Klamath Basin for thousands of years. But, they’ve nearly been wiped out by competition from non-native fish. The 30-year recovery of this trout is proving to be a rare success story among endangered species.

Washington’s Western gray squirrels are in trouble. So much so that state officials are considering uplisting the squirrels from threatened to endangered.

Fifty years after the U.S. Endangered Species Act took effect, officials say 99% of the animals and plants it protects have survived. But some scientists and activists fear the act itself is in trouble.

A once-rare flowering prairie plant has recovered enough in Washington and Oregon to be removed from the federal Endangered Species List.

Federal biologists have found that a sperm whale beached on Oregon's coast was killed after being struck by a ship. A spokesperson for the National Oceanic and Atmospheric Administration's fisheries agency said Monday that biologists came to that conclusion while examining a large gash in the whale's side.

The federal government announced Wednesday it’s designating whitebark pine trees – the ‘quintessential wilderness tree’ – as threatened under the Endangered Species Act.