Coldilocks, the oldest captive polar bear in the US, dies

Coldilocks, the oldest captive polar bear in the US, dies
In this Dec. 16, 2016, file photo, a female polar bear named Coldilocks looks up from a nap during a day of activities marking the polar bear's 36th birthday at the Philadelphia Zoo in Philadelphia. Coldilocks, who was the oldest captive polar bear in the U.S., has been euthanized following a serious decline in the 37-year-old polar bear's health, zoo officials said Tuesday, Feb. 20, 2018. Coldilocks was born at the Seneca Park Zoo in Rochester, N.Y., on Dec. 13, 1980, arriving at the Philadelphia Zoo on Oct. 6, 1981. (AP Photo/Matt Rourke, File)

The oldest captive polar bear in the U.S. has died.

The Philadelphia Zoo on Tuesday said that the 37-year-old bear, Coldilocks, was in declining health and was euthanized.

Zoo officials said Coldilocks had a variety of age-related medical issues, including problems with her kidneys and eyesight, but that visitors wouldn't have been able to tell as the bear pounced playfully on toys, pulling them deep into her pool during early morning dips.

"She was really a great animal," said Dr. Keith Hinshaw, director of animal health at the zoo. It was "spectacular" for Coldilocks to far surpass the average 23-year lifespan of a polar bear, he said.

The bear took "a sudden change for the worse" about a week ago when her appetite waned and her activity level decreased, Hinshaw said. Medical tests performed before Coldilocks was euthanized turned up potential liver and spinal problems as well, he said.

Dr. Andy Baker, the zoo's , said Coldilocks brought attention to how climate change affects . She will be greatly missed, he said

Coldilocks was born Dec. 13, 1980 at Seneca Park Zoo in New York and arrived at the Philadelphia Zoo about a year later.

Her final birthday last year was celebrated with a party at the zoo. She was served a cake of , honey, raisins and fish.

Coldilocks, the oldest captive polar bear in the US, dies
In this Jan. 16, 2008, file photo, a female polar bear named Coldilocks plays with a container at the Philadelphia Zoo in Philadelphia. Coldilocks, who was the oldest captive polar bear in the U.S., has been euthanized following a serious decline in the 37-year-old polar bear's health, zoo officials said Tuesday, Feb. 20, 2018. Coldilocks was born at the Seneca Park Zoo in Rochester, N.Y., on Dec. 13, 1980, arriving at the Philadelphia Zoo on Oct. 6, 1981. (AP Photo/Matt Rourke, File)

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