Mule deer herds are declining across the West for many reasons. But three states — Utah, Wyoming and Nevada — want to both pin the blame on mountain lions and “resolve” the issue by using cruel traps.

Attacks by mountain lions are still incredibly rare, despite recent incidents. Humans are increasingly coming in contact with mountain lions, raising questions as to whether humans are to blame and ...

Imagine getting a backyard alert on a regular Tuesday morning. You brace yourself, ready to confront an intruder — only to find a giant cat darting away. That’s exactly what happened to Steven ...

A camper at a California state park rode his bicycle to the ranger station in an effort to get cell service but got a whole lot more: A very close encounter with a mountain lion. The unidentified man ...

A mountain lion bit an 11-year-old girl outside her home in Malibu on Sunday and then proceeded to chase her mother and sibling before it was killed by authorities, according to state wildlife ...