They found his cause of death. How sad that he drowned in his enclosure, because of swelling on his brain.
German Polar Bear Knut
German Polar Bear Knut
The Berlin zoo's celebrity polar bear, Knut, drowned after swelling of his brain caused him to collapse and fall into his enclosure's pool, experts said Friday
A necropsy of the four-year-old bear who died suddenly two weeks ago showed he was suffering from encephalitis, an irritation and swelling of the brain that was likely brought on by an infection