![]() ![]() Instead, she probably just wanted to show her mother the leaf. The upshot, said the team, is that Fiona was likely to have been neither offering food nor seeking another activity. We use Google reCaptcha to protect our website and the Google Privacy Policy and Terms of Service apply. For more information see our Privacy Policy. Privacy Notice: Newsletters may contain info about charities, online ads, and content funded by outside parties. Only five of 58 clips capturing a chimpanzee’s behaviour both before and after leaf-grooming showed them subsequently grooming another chimpanzee or playing with them. While a leaf was often watched simultaneously by the chimpanzee grooming it and an onlooker, they were not recorded eating the foliage. ![]() To explore possible explanations, the researchers examined 84 video clips of chimpanzees in the Ngogo and Kanyawara communities that were grooming leaves near at least one other individual. Once Sutherland moved both her eyes and head towards the foliage, Fiona withdrew the leaf, and continued grooming it. “She does kind of three separate movements, each time kind of putting it closer and closer to her mother’s face,” said Slocombe. When Sutherland only lowered her eyes, Fiona thrusted the leaf further forwards – possibly, the team suggested, because she did not see her mother’s response. It was while studying the Ngogo chimpanzee community in the Kibale national park, Uganda, that Slocombe and colleagues captured video of footage of an adult female, called Fiona, grooming a leaf – a common behaviour in which chimpanzees pluck foliage, peer at it, and stroke it.īut then Fiona did something unusual: she held the leaf out to her mother, Sutherland, who was sitting next to her. “If they have their hands out towards something, it means ‘give me that’.” “Sometimes when they’re grooming in this community of chimpanzees, they’ll scratch a particular location on their body … and that indicates ‘I want you to groom me here’,” said Slocombe. Writing in the Proceedings of the National Academy of Sciences, Slocombe and colleagues noted that even close relatives of humans, such as great apes, were thought only to gesture to objects for particular purposes. She just wants them to look at it together, and be like ‘Oh, cool, nice!’,” said Prof Katie Slocombe of the University of York, a co-author of the study. Now researchers say they have found an instance of a chimpanzee showing her mother a leaf. ![]()
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