Takumasa Yokoyama. Partner choice in the socio-sexual interactions among wild bonobos (Pan paniscus). Kyoto University. Ph.D. thesis. 2023
Takumasa Yokoyama. Column: What Kinds of Sexual Functions Does Genito-Genital Rubbing Have as a Sociosexual Behavior?. Bonobos and People at Wamba: 50 Years of Research. 2023. 229-231
Takumasa Yokoyama, Takeshi Furuichi. Partner choice in genito-genital rubbing among female bonobos (Pan paniscus) is highly dependent on physical proximity. Primates. 2023. 64. 1. 25-33
Takumasa Yokoyama, Takeshi Furuichi. Why bonobos show a high reproductive skew towards high-ranking males: analyses for association and mating patterns concerning female sexual states. Primates. 2022. 63. 5. 483-494
2018/03 - The 9th International Symposium on Primatology and Wildlife Science Poster Presentation 3rd Prize Female choice criterion for sexual and/or social partner in bonobos