TOLEDO, Ohio -- One of the oldest female chimpanzees in the North American zoo population has died at the Toledo Zoo.
Fifi, a 49-year-old chimp, died late Friday afternoon.
A Sunday news release from the zoo said that Fifi's keepers noticed Thursday morning that she seemed stiff and tired. After improving early Friday, she then appeared disoriented in the afternoon and then deteriorated rapidly until she died.
A necropsy revealed possible blood vessel abnormalities in her brain but further tests will be done.
Fifi came to the zoo in 1963 at the age of 3.
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