The Phoenix Zoo lost its beloved mountain lion, Sierra, who was humanely euthanized this week after dealing with advanced ...

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

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

PHOENIX (AZFamily) — The Phoenix Zoo had to make a tough announcement this week. Zoo staff made the difficult choice to ...

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 ...