![]() Measures of hand preferences between the first and the second session conducted 4 years later (2005–2009) by an observer blind to the previous handedness data. ![]() First, we showed significant correlations in the 26 retested baboons for the Here, we demonstrated the robustness and the consistency across time of the pattern of right-handedness for a species-specific communicative gesture in olive baboons (Papio anubis). However, some authors remain skeptical of these findings on both methodological and theoretical grounds. In captive baboons, population-level right-handedness has been reported for both coordinated bimanual actions and communicative gestures. Whether nonhuman primates exhibit population level right manual bias remains a controversial topic.
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