Publication Date: 
Wed, 2011-03-23 20:42

The zoo didn't elaborate on the changes to the animal's brain, and officials could not immediately be reached for further comment. Pathologists found no changes to any other organs, the zoo said, adding that it will take several days to produce a final result.
Further planned tests include bacteriological and histological, or tissue, examinations. Knut died Saturday afternoon in front of visitors at the zoo, turning around several times and then falling into the water in his enclosure. Polar bears usually live 15 to 20 years in the wild and even longer in captivity.

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