This week, the Saint Louis Zoo said farewell to resident polar bear Kali and welcomed two polar bear twins in an exchange with the Toledo Zoo & Aquarium.

TOLEDO, Ohio — The Toledo Zoo is shipping its 26-year-old female polar bear Crystal with a new boo from ... Species Survival Plan to ensure the animals' health and genetic diversity, the Toledo ...

LOUIS — Kali, the polar bear often voted the favorite or best animal at the St ... he will breed with that zoo’s female polar bear, Crystal, who is 26. In return, the Toledo Zoo sent Crystal ...