While pumas have killed thousands of Magellanic penguins in Patagonia, predator pressure alone is unlikely to drive the ...

A new study documents the complex interactions between cougars and gray wolves in Yellowstone National Park and finds their ...

The Dogo Argentino, also known as the Argentine Mastiff, is a large, powerful, and muscular working dog originally bred in Argentina for big-game hunting (like wild boar and puma).

A young mountain lion that was spotted roaming SF's Pacific Heights neighborhood since Monday night was tranquilized and captured, officials said.

A 77-pound mountain lion set off a scramble Tuesday as it wandered through San Francisco’s wealthy Pacific Heights ...

Wildlife photographer Dave Kiely is used to keeping his distance, using a zoom lens to capture animals in stunning detail ...

To ensure the long-term survival of mountain lions, the California Fish and Game Commission is slated to vote to list the ...

Massi rushes down the slope, leaps across a slow-running stream and disappears inside a thick bush. Rosie, his young ...

IT’S on your left,” I hear someone say, muffled through the water. I spin round and barely a foot away is a beautiful ...

A mountain lion recently spotted in San Francisco's Pacific Heights neighborhood has been located Tuesday morning, after it ...