Noelle, a 12-year-old fennec fox at the Phoenix Zoo, died last week, officials said. Here's what happened to the cute animal.

The Phoenix Zoo is mourning the loss of one of its beloved animals. The zoo announced Noelle the female fennec fox died a week ago at the age of 12. She was six months old when she arrived at the zoo in 2012.

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.