Happy Birthday Coldilocks! The oldest polar bear in the country calls the Philadelphia zoo home!
Coldilocks, 36, will celebrate her big day with birthday treats like cake, and a "Happy Birthday" song sung by guests.
Colidlocks has played a vital role in educating zoo visitors about climate change and the everyday steps they can take in helping protect the environment.
The species is listed as vulnerable on the International Union for Conservation of Nature (ICUN) red list of species.