The Phoenix Zoo's new big cats habitat features specialized swimming pools designed for jaguars and lions. Building these pools presented unique challenges, including recessing skimmers and drains for ...

Officials at Wildlife World Zoo in Arizona reported two big cats and three large birds died, while 25 human employees were also exposed to the bird flu.

Mystic, a mountain lion at the Phoenix Zoo, was euthanized due to renal failure. Mystic and her sister, Sierra, who died in February, arrived at the zoo as orphaned cubs in 2007. Two new mountain ...