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. Author manuscript; available in PMC: 2012 Dec 28.
Published in final edited form as: Nature. 2012 Jun 28;486(7404):527–531. doi: 10.1038/nature11128

Figure 1. Geographical distribution and test for admixture between chimpanzees and bonobos.

Figure 1

a, Geographical distribution of bonobos and chimpanzees. b, D statistics for the admixture test between bonobos and three chimpanzee groups. Each pairwise comparison between one bonobo and two chimpanzee groups is depicted as one panel. Each point in a panel represents one bonobo individual compared with two chimpanzee individuals from different groups. Admixture between bonobo and chimpanzee is indicated by a Z-score greater than 4.4 or less than −4.4.