The World of George Zaharoff: How Do Chimpanzees Trim Their Nails?
“Chimp’s nail will wear down naturally, but Phillip has seen them biting them.
Generally their hands are very dirty, they are always exploring their own bodies, but there are some Chimps that like to keep clean and will wash their hands if water is available. (remember we are talking about Chimps in a captive environment).”
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