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Tulsa Zoo's Brown Bear Dies

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Yukon was 28 years old [photo courtesy Tulsa Zoo] Yukon was 28 years old [photo courtesy Tulsa Zoo]
Yukon, Tulsa Zoo's brown bear has died  [photo courtesy Tulsa Zoo] Yukon, Tulsa Zoo's brown bear has died [photo courtesy Tulsa Zoo]


TULSA, OK -- The Tulsa Zoo says its 28-year-old male Brown Bear has died.

Zoo officials say a recent and drastic change in Yukon's behavior prompted zoo veterinary staff to conduct an emergency medical exam.

After discovering signs of severe and inoperable liver disease, the zoo's veterinary staff decided to humanely euthanize the bear.

"From the physical exam and ultrasound scan of his abdomen it was clear that his condition was severe and untreatable," said Dr. Kay Backues, the Tulsa Zoo's staff Veterinarian.

Further test results received this week confirmed Yukon suffered from liver cancer.

Preventative medicine is the major focus of veterinary medicine at the Tulsa Zoo.

Zoo officials say these bears can live as long as 25-30 years in the wild, 30-40 years in captivity, if they remain in good health. Many zoo animals are living longer lives and facing the health issues of advanced age.

"Liver disease and especially liver cancer are common in geriatric bears of all species," commented Dr. Backues.

Yukon was a well-loved personality at the zoo and had many fans; his enormous size, 1,440 pounds made him an impressive reason to visit the south end of the Zoo.

Yukon arrived in 1985 to the Tulsa Zoo from Seattle's Woodland Park Zoo, where he was born in 1981.

With Yukon's death, the Tulsa Zoo now does not have any Brown Bears on exhibit.

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