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

The Phoenix Zoo lost its beloved mountain lion, Sierra, who was humanely euthanized this week after dealing with advanced renal failure. The Reid Park Zoo had to humanely euthanize their African lion, ...

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.

After 17 long years at the Phoenix Zoo, Sierra the mountain lion was humanely euthanized after experiencing renal failure, the zoo said on Feb. 27. She came to the zoo 17 years ago as an orphaned cub ...

The Phoenix Zoo lost one of its longtime residents this week. Sierra, a mountain lion, was humanely euthanized due to ...

The state-of-the-art space is dedicated to showcasing and caring for some of Arizona’s most elusive native predators.

Still, that doesn’t mean it’s a pressing need. Jared Goff signed a massive extension last year, and the Lions have another two years of team control with Hooker. Hooker just wrapped his first ...

In celebration of resident moose Atka shedding his antlers, the Cheyenne Mountain Zoo wants to hear how much you think the antlers weigh. Like many male moose, Atka (a.k.a "the Prince of Rocky ...

Kearns followed suit and won by technical fall over Henry, so the Mountain Lions captured the team title by 2.5 points over the Wildcats. It was the first District 6 title for Altoona since 1981 ...

In this video, we’ll take a look at each of the 15 US States and discuss their mountain lion populations. From Arizona to New Hampshire, we’ll cover all the important information about these North ...