Police urged anyone in the area to be cautious, especially if they have children and pets. Anyone who sees the mountain lion ...

For decades, biologists have studied how cities affect wildlife by altering food supplies, fragmenting habitats and polluting the environment. But a new global study argues that these ...

Inspired by a mountain lion isolated from potential mates, the world's largest wildlife bridge is being built in Los Angeles ...

A mountain lion will likely try to find a spot where it feels safe and hidden, which may be what happened with P-122, he said. Where did the mountain lion come from?

Epic Guide to Olympic National Park Hikes includes everything from epic waterfalls to breathtaking mountain views, lush ...

The park's newest resident — the mountain lion featured in this clip from the "Cities" episode of The Nature of Things series Shared Planet — had travelled a long way to get there.

The story of one mountain lion’s 800-mile journey to the heart of Chicago offers a window into the Midwest’s changing ecology.

Mountain lions in the greater Los Angeles region are consciously shifting their activity to avoid interacting with human residents, a new study has found.