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Milwaukee County Zoo Announces
Passing of Polar Bear Zero

Polar bear Zero

Posted January 2016

We are saddened to announce the passing of Zero, the 26-year-old male polar bear born here in 1989, and transferring to the Seneca Park Zoo in NY in 2010.

Polar bear ZeroBased on necropsy findings, the provisional diagnosis for Zero’s disorder is lymphoma, a form of cancer. Histopathology results will be available in 6 weeks.

“Given that Zero was one of the nine oldest male polar bears in Association of Zoos and Aquariums (AZA)-accredited institutions, Seneca Park Zoo’s Director of Animal Health and Conservation Dr. Jeff Wyatt noted, “a cause of death correlated with advanced age was high on the differential list.”

Polar bear Zero
Photos courtesy of the Seneca Park Zoo.

Zero was transferred to Seneca Park where he joined Aurora, a female polar bear also born in 1989. While he didn’t produce any offspring, Zero’s contribution to the field of assisted reproduction strategies will support the future of the Polar Bear Species Survival Plan® (SSP), a management program that maintains a healthy and sustainable population of species in conservation care.

While residing at both the Milwaukee County Zoo and the Seneca Park Zoo, Zero served to educate countless visitors on the importance of conserving this precious species. He will not be forgotten.
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