”Able-Bodied Wild Chimpanzees Imitate a Motor Procedure Used by a Disabled Individual to Overcome Handicap”. PLoS ONE 5(8): e11959. 2010. doi:10.1371/journal.pone.0011959. http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0011959. Läst 7 augusti 2010. ”Adult male Tinka, with near-total paralysis of both hands, compensates inability to scratch his back manually by employing a distinctive technique of holding a growing liana taut while making side-to-side body movements against it. We found that seven able-bodied young chimpanzees also used this 'liana-scratch' technique, although they had no need to. The distribution of the liana-scratch technique was statistically associated with individuals' range overlap with Tinka and the extent of time they spent in parties with him, confirming that the technique is acquired by social learning.”
”Able-Bodied Wild Chimpanzees Imitate a Motor Procedure Used by a Disabled Individual to Overcome Handicap”. PLoS ONE 5(8): e11959. 2010. doi:10.1371/journal.pone.0011959. http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0011959. Läst 7 augusti 2010. ”Adult male Tinka, with near-total paralysis of both hands, compensates inability to scratch his back manually by employing a distinctive technique of holding a growing liana taut while making side-to-side body movements against it. We found that seven able-bodied young chimpanzees also used this 'liana-scratch' technique, although they had no need to. The distribution of the liana-scratch technique was statistically associated with individuals' range overlap with Tinka and the extent of time they spent in parties with him, confirming that the technique is acquired by social learning.”
