- Associated Press - Wednesday, May 6, 2015

TUCSON, Ariz. (AP) - Officials at a Tucson’s Reid Park Zoo say the oldest Malayan sun bear in captivity has been euthanized.

The zoo’s veterinarian says the 34-year-old bear named Dresena was evaluated by specialists and test results confirmed significant abnormalities in her brain.

With a continued decline in her health and a poor long-term prognosis, zoo staff made the decision to euthanize her Tuesday.

Zoo officials say the median life expectancy for a female Malayan sun bear in captivity is 23.

Dresena came to Tucson in 2001. With her declining eyesight in past years, she spent much of her time off exhibit.

Zoo officials say her den remained a favorite of education and behind-the-scenes tours.

Sun bears are native to Southeast Asia and are considered a vulnerable species because of deforestation and hunting.

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