Coldilocks, the oldest polar bear in the U.S. died at the Philadelphia Zoo, WCAU reported.
The zoo euthanized her Monday after her health declined due to old age, WCAU reported.
"We are truly saddened this week -- Coldilocks will be greatly missed,” zoo COO Andy Baker told WCAU.
In December, Coldilocks turned 37, 14 years beyond the average lifespan of a polar bear, WCAU reported.
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