Researchers document second case of `Down syndrome` in chimps
(PHYSorg.com Biology)

Japanese researchers have confirmed the second case known to science of a chimpanzee born with trisomy 22, a chromosomal defect similar to that of Down syndrome (or trisomy 21) in humans. The report on Kanako, a 24-year-old female chimp born into captivity, was led by Satoshi Hirata of Kyoto University in Japan, and appears in the journal Primates, published by Springer. The authors also describe their attempts to improve the quality of life of this chimpanzee, through providing and managing opportunities for normal social interaction. Such efforts are seen as key in caring for disabled chimpanzees in captivity.