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

Some residents of the Phoenix Zoo are moving to upgraded digs soon. On April 5, the zoo will celebrate the grand opening of Big Cats of Arizona: A Bridge to Arizona Wilderness, a new habitat for ...

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 ...