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. Author manuscript; available in PMC: 2020 Jul 6.
Published in final edited form as: Curr Biol. 2019 May 20;29(10):R354–R355. doi: 10.1016/j.cub.2019.03.040

Figure 1. Observed average likelihood of a male to sire offspring in the presence and absence of their mothers in the group.

Figure 1.

Bonobos are represented in black and chimpanzees in grey. Circle sizes represent the number of offspring. The generally higher likelihood of a male to sire a given offspring in bonobos is due to the smaller number of males in the group compared to chimpanzees.