While the cat’s radio collar was no longer active, scientists believe it had roamed from a population in northwest Nebraska.

Mountain lion P-129's capture near the Wallis Annenberg Wildlife Crossing site highlights the crossing's role in connecting habitats. Set to open in 2026, it aims to aid mountain lions, like P-129, at ...

Caught between wolves, mountain lions and grizzly bears, elk are struggling to fend off predators. A trail camera video shows ...

The big cat was captured within 200 meters of the animal crossing — a project expected to be complete in 2026.

These six stories show mountain lion encounters across the U.S. In one story out of Texas, officials shot a mountain lion that bolted through suburbs after being cornered in a backyard. A sneaky ...

Officials have recommended mountain lions be listed as threatened in parts of the state. Here's what happens next.

As winter approaches with its colder weather, mountain lions are more likely to make their way to Boulder, but there are ways to stay safe.

A coworker asked me recently whether I’d heard of any “lions” in the area. Not the African or Detroit kind, but mountain lions. Also known as cougars. A delivery man had just told her he’d seen one on ...

Imagine enjoying a scenic hot air balloon ride, when, suddenly, someone on board spots a mountain lion. Talk about right ...

Joe Rogan has a warning for Americans who love their pets: mountain lions are coming for them—and Democrats are to blame.

A man on a family vacation came face to face with a mountain lion and won. July 18, 2009— -- When Dustin Britton ventured 100 feet from his Wyoming campsite last week, he was prepared to cut wood ...

These mountain lion kittens from Simi Hills are thriving despite a failed foster attempt after their mom died. They're now at an Arizona sanctuary, where they will serve as "ambassadors" for the Santa ...