Reid Park Zoo officials said a female polar bear named "Snow" arrived in Tucson this week from SeaWorld Orlando.
Snow cannot be seen by the public, but could be as early as next week, according to zoo officials.
Snow has been moved to Reid Park Zoo to try to address chronic skin allergies veterinarians hope may improve with a drier climate. SeaWorld Orlando's animal care team tried numerous treatments for her condition, but none seemed to work.
Snow is a 17-year-old fully grown polar bear. She weighs 500 pounds, and was born in 1994 where she was hand-raised at the Denver Zoo, along with her twin brother Klondike, after their mother abandoned them.
The bears were donated to SeaWorld and moved there in 1995 under the recommendation of the Association of Zoos and Aquariums' (AZA) Species Survival Plan.
Reid Park Zoo has are no immediate plans to acquire an additional polar bear, as the animals are traditionally solitary animals.