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We find that the similarity between the 2 species is much greater than would be expected by chance.

Researchers have recently catalogued the meanings of chimpanzee gestures, but little is known about the gesture meanings of our other closest living relative, the bonobo.

We compare a matrix of the meanings of bonobo gestures with a matrix for those of chimpanzees against 10,000 randomised iterations of matrices constrained to the original data at 4 different levels. Cross-species comparison of great ape gesturing has so far been limited to the physical form of gestures in the repertoire, without questioning whether gestures share the same meanings. We then employ a randomisation procedure in a novel way to test the likelihood that the observed between-species overlap in the assignment of meanings to gestures would arise by chance under a set of different constraints. The gestural repertoire of captive gorillas contains the so-called hand-on (or pat-off) gesture in which one animals puts its flat hand on top of another’s head, which often leads to. However, less is known regarding how dogs shift attention toward human body signals, specifically hand signs. Moreover, all but 1 gesture type have distinct meanings, achieving a different distribution of intended meanings to the average distribution for all gesture types. Dogs have developed a social competence tuned to communicate with human and acquire social information from body signals as well as facial expressions. Around half of bonobo gestures have a single meaning, while half are more ambiguous. Here, we first determine the meanings of bonobo gestures by analysing the outcomes of gesturing that apparently satisfy the signaller. The bonobo gestural repertoire overlaps by approximately 90% with that of the chimpanzee, but such overlap might not extend to meanings. This is a premium icon which is suitable for commercial work: 1 credit needed. Cross-species comparison of great ape gesturing has so far been limited to the physical form of gestures in the repertoire, without questioning whether gestures share the same meanings. Iconfinder Bacon - Smooth Hand Washing Agreement, business, gestures, hand, hands, handshake, shaking icon Agreement, business, gestures, hand, hands, handshake, shaking icon Give feedback Change colors New.