California wildlife officials are now allowing mountain lions to be killed to protect endangered bighorn sheep, changing a ...

SOUTH LAKE TAHOE, Calif. — The U.S. Fish and Wildlife Service is proposing to list the California spotted owl population in the Sierra Nevada as threatened under the Endangered Species Act. USFW has ...

A wolverine was spotted three times last month in the eastern Sierra Nevada, a rare occurrence for an animal that's only been seen one other time in California over the last 100 years, state wildlife ...

CORVALLIS, Ore. (KTVZ) – Conservation efforts for the rare Sierra Nevada red fox can be strengthened through new computer modeling based on a 12-year data gathering partnership led by scientists at ...

The Big Melt is finally underway in the Sierra Nevada range, and soon there will be few wild places beyond the reach of water sounds: dripping, gurgling and roaring as runoff flows from lofty peaks to ...

A new pack of gray wolves has shown up in California's Sierra Nevada, several hundred miles away from any other known population of the endangered species, wildlife officials announced Friday. It's a ...

PORTLAND, Ore. (KTVZ) — The Center for Biological Diversity petitioned Thursday for federal protection of Sierra Nevada red foxes in the Oregon and California Cascades, from Lassen Peak to Mount Hood.

Bear activity increases in the fall as the animals' hunger goes into overdrive in preparation for the winter months. See where bears have been reported.

SAN FRANCISCO (KGO) -- If you're going to the Sierra, take note. Wildlife experts are reviewing reports of people being bitten by otters. "It is by far the most terrifying experience I have ever had ...

SACRAMENTO, Calif.— The Center for Biological Diversity today released documentation showing widespread damage to critical habitat for the Sierra Nevada yellow-legged frog, mountain yellow-legged frog ...