Wildlife tracker David Moskowitz discusses the plight of mountain caribou and how they came to be so endangered.

As Conservation Canines, rescue dogs find a home and a purpose in tracking wildlife scat for science.

Watch how scientists trap, rehabilitate and relocate beavers from suburban ponds to mountain streams.

In southeast Alaska, tribes on both sides of the border unite in opposition to a Canadian mine that threatens ancestral fish runs.

Scientists, conservationists and a concerned public debate whether a 30-page report can kickstart a real effort to save Washington's imperiled orcas.

One fish, two fish — 600,000 pounds of salmon carcasses for a University of Washington study.

A lifelong visitor to the San Juan Islands reflects on the southern resident orcas, changing ecosystems and the passage of time.

Too few property owners are choosing to improve habitat. Their alternative should be annual payments.

A marine biologist is helping oysters fight back against ocean acidification.

Biologists counted more than 5,000 moose over three winters, but climate change and wolves are already eating into those numbers.