Polar bear dies unexpectedly at SeaWorld San Diego

Szenja, a 21 year old polar bear, died at SeaWorld's Wild Arctic Exhibit Tuesday after losing her appetite and energy. Polar bears are known to live 20 to 30 years in captivity or 18 years in the wild.

Beloved Szenja, a 21-year-old female polar bear, lost appetite and energy in final days

Szenja the 21-year-old polar bear died at SeaWorld's Wild Arctic Exhibit Tuesday after losing her appetite and energy. Polar bears are known to live 20 to 30 years in captivity or 18 years in the wild. (SeaWorld/The Associated Press)
A beloved polar bear has died unexpectedly at Seaworld in San Diego.    
This undated photo provided by SeaWorld San Diego shows Szenja, a female polar bear. The park said Szenja died unexpectedly Tuesday, April 18, 2017, at the age of 21. (SeaWorld/The Associated Press)
Szenja (SIN'-jah) was a 21-year-old female. The park says she died Tuesday.
Caregivers said she had a loss of appetite and energy for about a week.

A necropsy is planned, but the park says it could be several weeks before the cause of her death is known.

Szenja was born at a zoo in Germany in 1995. Two years later, she was brought to SeaWorld when the park opened its Wild Arctic exhibit.

Polar bears can live about 18 years in the wild and 20 to 30 years or more in captivity.

The oldest polar bear in the United States, a female called Uulu (OOH'-loo), died last Friday at the San Francisco Zoo. She was 36.