The Columbian black-tail deer has become a habitat threat, creating ideal conditions for invasive plants and forest fires.

An unprecedented study of trends in marine parasite biodiversity shows a majority are struggling. That could spell disaster for other animals.

After 150 years of broken treaties and declining salmon populations, Randy Settler worries there won't be enough fish for future Indigenous generations.

As the crustacean's population plummets in the Bering Sea, so do the livelihoods of fishers in Washington and beyond.

Due to chemical pollution, the treaty-protected fish in the Columbia River Basin pose health risks for Indigenous tribes.

The fish almost disappeared from Howe Sound in the mid-1970s. Now, the Squamish Nation and citizen scientists are welcoming them home.

How will the grizzlies get here? What will their arrival mean for local ecosystems? And will I run into them while I'm camping?

Researchers in B.C. found that ocean sound pollution interrupts the Arctic white whales' communication, migration and hunting habits.

A five-year battle over a bag of clams shows how a reliance on century-old treaties can lead authorities to treat members of some tribes differently than others.

Researchers hope a new sonar technology, which triggers a nails-on-chalkboard-like reflex to seals and sea lions, could be a tool to protect the endangered fish.

The Natural Areas program is critical for preserving native biodiversity in the state, but climate change is challenging its future.

Without passageways to cross dams along the Columbia, salmon are dying. Tribes say the U.S. government isn't cooperating as they try to help the fish recover.

Coastal gardens once saw harvests that rivaled today's commercial fisheries without exploiting the land. Some Native communities are now reviving the tradition.

For decades, the Arlington radio station has helped the U.S. military communicate with its submarine fleet. It's also one of Russia's top nuclear targets.