The Phoenix Zoo and Reid Park Zoo in Tucson are both dealing with the loss of longtime residents. The Phoenix Zoo lost its beloved mountain lion, Sierra, who was humanely euthanized this week after ...

The zoo said zookeepers and veterinary staff made the "difficult decision" to put down mountain lion Sierra earlier this week ...

Zoo staff made the difficult choice to euthanize one of the zoo’s two female mountain lions, Sierra, earlier in the week.

U.S. Senator Steve Daines helped successfully repeal a freeze that previously hindered the onboarding of volunteer drivers for the Disabled American Veterans organization.

Montana game wardens are seeking information on a mountain lion found dead near mile marker three on the Troy Mine Road south of Troy. An investigation is underway after the lion was found wrapped in ...

For the past several years, Montana Fish, Wildlife & Parks has worked with local hound handlers to monitor lion populations. This unique and beneficial relationship is an efficient way to monitor a ...

Investigators are baffled by the case of somebody killing a mountain lion in Montana, and then cutting off and taking the ...