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 will break ground this week on a new veterinary medical center. The 27,000-square-foot building will provide ...

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

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

PHOENIX — A new tiger exhibit is now open for the public’s viewing at the Wildlife World Zoo in Litchfield Park. The new ...

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

The Phoenix Zoo is a great place to enjoy nature without your little ones dying of boredom. There are four trails that wind through the numerous habitats populated by more than 3,000 animals ...

After over a year and a half of construction, a new habitat at the Phoenix Zoo will be opening its doors to the public!The Phoenix Zoo announced that its brand new habitat, Big Cats of Arizona, will ...

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 ...

PHOENIX (AZFamily) — The Phoenix Zoo had to make a tough announcement this week. Zoo staff made the difficult choice to euthanize one of the zoo’s two female mountain lions, Sierra ...