A solo hiker who authorities believe was killed by a mountain lion on a remote Colorado trail on New Year’s Day was not the first person to encounter one of the predators in the area in recent weeks.

Attacks on livestock and pets, however, have trended upward in recent decades, according to a state report. But state wildlife officials also note that such attacks rise for every mountain lion killed ...

Just weeks after a mountain lion wandered into San Francisco, state officials voted to permanently protect populations of the charismatic predators that prowl the coastal mountains between the Bay ...