Maeda T., Inoue S., Ringhofer M., Hirata S. & Yamamoto S. (2026) Spatial strategies in non-territorial societies: how feral horses maintain boundaries with other groups. Proceedings of Royal Society B, 21 (293): 20252468. https://doi.org/10.1098/rspb.2025.2468 Press release 非縄張り社会における空間戦略：再野生ウマが他群との境界を維持する方法 日本語プレスリリース
Brooks J., Eleuteri V., van der Werff J. & Yamamoto S. (2026) Spontaneous rhythmic and tool-assisted drumming across variable tempo and technique in a captive chimpanzee. Ethology, 1–12. https://doi-org.kyoto-u.idm.oclc.org/10.1111/eth.70079 飼育下チンパンジーにおけるテンポや技法を変化させた自発的リズム生成および道具使用ドラミング行動
Freitas J., Godinho R., Mendonça R., Nakamura M., Rio-Maior H., Ringhofer M., Yamamoto S., Hirata S., & Álvares F. (2026) Unveiling wolf dietary specialization on free ranging horses using forensic genetics and field monitoring. Scientific Reports, in press. https://doi.org/10.1038/s41598-026-59871-3 ポルトガル北西部の野生オオカミが再野生ウマを主要な餌資源として選択的に利用していることをGPS追跡と遺伝学的解析を組み合わせて実証。
Herbrich M., Sands E., Ishizuka S., Kaigaishi Y., Yamamoto S., Sueur C. (2025) Influence of ecological and social factors on huddling behaviour and cluster organisation in Japanese macaques (Macaca fuscata). Primates, 66, 207–219. https://doi.org/10.1007/s10329-024-01178-w ニホンザルのサル団子（集団凝集）形成におよぼす環境的・社会的要因
Onishi E., Brooks J., Inoue S., Yamamoto S. (2025) Socially contagious urination in chimpanzees. Current Biology, 35, R58-R59. https://doi.org/10.1016/j.cub.2024.11.052 Press release チンパンジーの社会的排尿伝染 日本語プレスリリース
Piao Y., Brooks J., Yamamoto S. (2025) An eye-tracking study of visual attention in chimpanzees and bonobos when viewing different tool-using techniques. Animal Cognition. 28, 12. https://doi.org/10.1007/s10071-025-01934-5 チンパンジー・ボノボは他者の道具使用技法のどこに注目するか：アイトラッカーを用いた研究
Maeda T., Mendonça R., Pinto P., Ringhofer M., Godinho R., Hirata S., Yamamoto S. (2025) No evidence of kin preferences in a feral horse multilevel society. Animal Behaviour, 222, 123120. https://doi.org/10.1016/j.anbehav.2025.123120 野生ウマの重層社会において血縁関係は重要な役割を果たさない
貝ヶ石 優 (2025) 「霊長類学における「寛容社会」とは何か？」河合 文・川添 達朗・谷口 晴香 (編)『フィールドにみえた〈社会性〉のゆらぎ 霊長類学と人類学の出会いから』,京都大学学術出版会
Kaigaishi, Y., Nakamichi, M., Yamada, K. (2025) Polyadic Grooming Patterns and Network in a Free-Ranging Group of Japanese Macaques at Awajishima. American Journal of Primatology, 87,6, e70054. https://doi.org/10.1002/ajp.70054 淡路島に生息する餌付けニホンザルにおいて、3頭以上で行われる「多頭毛づくろい」について詳細な定量的分析を行った
Vilela, S., Chen, P., Murakami, S., Tanabe, Y., Yamamoto, S. (2025) Self-directed behavior reflects social stress in captive Asian elephants. Frontiers in Veterinary Science, 12,1629664. https://doi.org/10.3389/fvets.2025.1629664 飼育アジアゾウにおいて自己指向性行動は社会的ストレスを反映している
Ogawa A. & Yamamoto S. (2025) Why is mutual grooming rare despite its function? A hypothesis for cognitive constraints. BIology Letters. 21, 20240669. https://doi.org/10.1098/rsbl.2024.0669 相互グルーミングは機能的にも関わらず動物界でなぜ稀なのか？認知的制約仮説の提唱
Jim, H.-L., Belfiore, K., Martinelli, E.B., Martínez, M., Range, F. & Marshall-Pescini, S. (2025) Do dogs form reputations of humans? No effect of age after indirect and direct experience in a food-giving situation. Animal Cognition, 28, 51. https://doi.org/10.1007/s10071-025-01967-w イヌは人間に対して評判を形成するか？ Press release
Brooks, J., Clay, Z., Dufour, V., Fedurek, P., Girard-Buttoz, C., & Yamamoto, S. (2025). Collective Acoustics in Pan: Conserved Roots in the Evolution of Human Musicality. American Journal of Primatology, 87(6), e70048. https://doi.org/10.1002/ajp.70048 パン属における集団音響：ヒトの音楽性の進化的基盤
Jardat P., Yamamoto S., Ringhofer M., Tanguy-Guillo N., Parias C., Reigner F., Calandreau L., & Lansade L. (2025) Emotional contagion of fear and joy from humans to horses using a combination of facial and vocal cues. Scientific Reports, 15, 17689. https://doi.org/10.1038/s41598-025-98794-3 ウマにおけるヒトからの快・不快情動の伝染：表情と音声刺激を用いた実験研究
Vilela, S., Chen, P., Murakami, S., Tanabe, Y., Yamamoto, S. (2025) Increase in left-side oriented behaviors associated to negative emotions in captive Asian elephants. Laterality, 30, 168-181. https://doi.org/10.1080/1357650X.2025.2573390 飼育アジアゾウのネガティブ情動を伴う自己指向性行動は体側左側に偏っていて、脳機能の左右差を示唆している
Jim, H.-L., Yamamoto, S., Bansiddhi, P. & Plotnik, J. M. (2025) Asian elephants (Elephas maximus) recognise human visual attention from body and face orientation. Scientific Reports, 15, 32623. https://doi.org/10.1038/s41598-025-16994-3 Press release アジアゾウは身体・顔の向きからヒトの注意状態を理解する。日本語プレスリリース
Africa D. D., Ikeda K., Maeda T., Inoue S., Ringhofer M., Yamamoto S., Go C. K. (2025) Herding as an emergent behaviour in harem groups of feral Garrano ponies. Journal of the Royal Society Interface, 22 (233): 20250187. https://doi.org/10.1098/rsif.2025.0187 トランスファーエントロピーを用いた野生ウマのハーディング行動の分析
Sueur, C., Ishizuka, S., Kaigaishi, Y., Yamamoto, S. (2024). The Warmth of Sarudango: Modelling the Huddling Behaviour of Japanese Macaques (Macaca fuscata). Animals 14 (23). https://doi.org/10.3390/ani14233468 サル団子の暖かさ：ニホンザルの集団凝集行動のモデリング
Lin, C., Muramatsu, A., Yamamoto, S. (2024). Audience presence influences cognitive task performance in chimpanzees. iScience 27(11), 111191. https://doi.org/10.1016/j.isci.2024.111191 Press release チンパンジーは観衆を気にする？―観衆の有無で数字課題のパフォーマンスが変わる― 日本語プレスリリース
Kaigaishi, Y. & Yamamoto, S. 2024 Higher eigenvector centrality in grooming network is linked to better inhibitory control task performance but not other cognitive tasks in free-ranging Japanese macaques. Scientific Reports, 14, 26804. ニホンザルにおいて社会ネットワークの中心にいる個体は高い自己抑制能力を示す https://doi.org/10.1038/s41598-024-77912-7 日本語プレスリリース
Brooks, J., van Heijst, K., Epping, A., Lee S. H., Niksarli, A., Pope, A.,Clay, Z., Kret, M., Taglialatela, J., & Yamamoto, S. (2024) Increased alertness and moderate ingroup cohesion in bonobos’ response to outgroup cues. PLOS ONE, 19(8), e0307975. https://doi.org/10.1371/journal.pone.0307975 日欧米の飼育ボノボ集団を対象に「共通の敵」効果を検証。チンパンジーでしたBrooks et al. 2001との比較研究。
Brooks, J., Maeda, T., Ringhofer, M., Yamamoto, S. (2024) Oxytocin homogenizes horse group organization, iScience 27(7) 110356. https://doi.org/10.1016/j.isci.2024.110356 外因性オキシトシンは、飼育ウマ集団における社会関係を「均質化」する効果がある。
Paulet, J., Molina, A., Beltzung, B., Suzumura, T., Yamamoto, S., Sueur, C. (2024) Deep learning for automatic facial detection and recognition in Japanese macaques: illuminating social networks. Primates 65, 265-279. https://doi.org/10.1007/s10329-024-01137-5 ニホンザル自然集団における顔検出・個体識別のための機械学習、および社会ネットワーク分析。
Kinsman, R.H.*, Jim, H.-L.*, Casey, R.A., Ruiz-Izaguirre, E., Owczarczak-Garstecka, S., Cooper, B., Tasker, S., & Murray, J. K. (2024). Puppy Socialisation Experiences in Relation to Age and COVID-19 Lockdown Restrictions in the UK and ROI. Animals, 14(10), 1471. https://doi.org/10.3390/ani14101471 (*Joint first authors)
Hattori, M., Kinoshita, K., Saito, A. & Yamamoto, S. (2024) Exogenous oxytocin increases gaze to humans in male cats. Scientific Reports 14, 8953. 外因性オキシトシンはオスネコのヒトへの視線を増加させる https://doi.org/10.1038/s41598-024-59161-w 日本語解説
Yamamoto S. (2023) Food sharing in rich environment. In T. Furuichi, G. Idani, D. Kimura, H. Ihobe, & C. Hashimoto (Eds.), Bonobos and People at Wamba: 50 Years of Research. Springer. Pp. 233-235.
Kaigaishi Y. & Yamamoto S. (2023) A report of stillbirth and subsequent maternal cannibalism observed in a free-ranging group of Japanese macaques at Awajishima, Japan. Primates, 64(6), 573–578. https://doi.org/10.1007/s10329-023-01091-8
Megan M. Joyce, Julie A. Teichroeb, Yu Kaigaishi, Brogan M. Stewart, Kazunori Yamada & Sarah E. Turner. (2023) No food left behind: foraging route choices among free-ranging Japanese macaques (Macaca fuscata) in a multi-destination array at the Awajishima Monkey Center, Japan. Primates, 64, 495–511. https://doi.org/10.1007/s10329-023-01070-z
ManyDogs Project, Espinosa, J., Stevens, J.R., Alberghina, D., Alway, H.E.E., Barela, J.D., Bogese, M., Bray, E.E., Buchsbaum, D. Byosiere, S.-E., Byrne, M., Cavalli, C. M., Chaudoir, L. M., Collins-Pisano, C., DeBoer, H.J., Douglas L.E.L.C., Dror, S., Dzik, M.V., Ferguson, B., Fisher, L., Fitzpatrick, H.C., Freeman, M.S., Frinton, S.N., Glover, M.K., Gnanadesikan, G.E., Goacher, J.E.P., Golańska, M., Guran, C.-N.A., Hare, E., Hare, B. Hickey, M., Horschler, D.J., Huber, L., Jim, H.-L., Johnston, A.M., Kaminski, J. Kelly, D.M., Kuhlmeier, V.A., Lassiter, L., Lazarowski, L., Leighton-Birch, J., MacLean, E.L., Maliszewska, K., Marra, V., Montgomery, L.I., Murray, M.S., Nelson, E.K., Ostojić, L., Palermo, S.G., Parks Russell, A.E., Pelgrim, M.H., Pellowe, S.D., Reinholz, A., Rial, L.A., Richards, E.M., Ross, M.A., Rothkoff, L.G., Salomons, H., Sanger, J.K., Santos, L., Shirle, A.R., Shearer, S.J., Silver, Z.A., Silverman, J.M., Sommese, A., Srdoc, T., St. John-Mosse, H., Vega, A.C., Vékony, K., Völter, C.J., Walsh C.J., Worth, Y.A., Zipperling, L.M.I., Żołędziewska, B., & Zylberfuden, S.G. (2023). ManyDogs 1: A Multi-Lab Replication Study of Dogs’ Pointing Comprehension. Animal Behavior and Cognition, 10(3), 232–286. https://doi.org/10.26451/abc.10.03.03.2023
Sun X.Q., Piao Y.G., Wang T.L., Wang J.C., Fu J.Z. & Cui J.G. (2023) Keep numbers in view: red-eared sliders (Trachemys scripta elegans) learn to discriminate relative quantities. Biology Letters, 19, 20230203. http://doi.org/10.1098/rsbl.2023.0203
Lee S. H. & Yamamoto S. (2023) The evolution of prestige: perspectives and hypotheses from comparative studies. New Ideas in Psychology, 68, 100987. https://doi.org/10.1016/j.newideapsych.2022.100987
Gouyet C., Ringhofer M., Yamamoto S., Jardat P., Parias C., Reigner F., Calandreau L. & Lansade L. (2023) Horses cross‑modally recognize women and men. Scientific Reports, 13, 3864. https://doi.org/10.1038/s41598-023-30830-6
Jardat P., Ringhofer M., Yamamoto S., Gouyet C., Degrande R., Parias C., Reigner F., Calandreau L., Lansade L. (2023) Horses form cross‑modal representations of adults and children. Animal Cognition, 26, 369-377. https://doi.org/10.1007/s10071-022-01667-9
Muramatsu, A., & Matsuzawa, T. (2023). Sequence Order in the Range 1 to 19 by Chimpanzees on a Touchscreen Task: Processing Two-Digit Arabic Numerals. Animals, 13(5), 774. https://doi.org/10.3390/ani13050774
Mendonca R., Maeda T., Pinto P., Inoue S., Ringhofer M., Yamamoto S. & Hirata S. (2023) Examining the effect of sociodemographic factors on feral horses’ social networks. Journal of Zoology. Online first publication. https://doi.org/10.1111/jzo.13100
Maeda T. & Yamamoto S. (2023) Drone Observation for the quantitative study of complex multilevel societies. Animals, 13, 1911. https://doi.org/10.3390/ani13121911
Hattori, M., Saito, A., Nagasawa, M., Kikusui, T. & Yamamoto, S. (2022). Changes in Cat Facial Morphology Are Related to Interaction with Humans. Animals, 12(24), 3493. https://doi.org/10.3390/ani12243493
Lee, S. H., & Yamamoto, S (in press). The evolution of prestige: Perspectives and hypotheses from comparative studies. New Ideas in Psychology. https://doi.org/10.1016/j.newideapsych.2022.100987.
Brooks, J, Kano, F, Yeow, H, Morimura, N, Yamamoto S (2022) Testing the effect of oxytocin on social grooming in bonobos. American Journal of Primatology e23444. https://doi.org/10.1002/ajp.23444
Brooks, J & Yamamoto, S (2022) The evolution of group-mindedness: comparative research on top-down and bottom-up group cooperation in bonobos and chimpanzees. Current Opinion in Behavioral Sciences 47, 101205. https://doi.org/10.1016/j.cobeha.2022.101205
Martin, C. F., Muramatsu, A., & Matsuzawa, T. (2022). Apex and ApeTouch: Development of a portable touchscreen system and software for primates at zoos. Animals: An Open Access Journal from MDPI, 12(13), 1660. https://doi.org/10.3390/ani12131660
Brooks, J, Kano, F, Kawaguchi, Y, Yamamoto S (2022) Oxytocin promotes species-relevant outgroup attention in bonobos and chimpanzees. Hormones and Behaviour 143, 105182. https://doi.org/ j.yhbeh.2022.105182
Pokharel SS, Sharma N and Sukumar R (2022) Viewing the rare through public lenses: insights into dead calf carrying and other thanatological responses in Asian elephants using YouTube videos. Royal Society Open Science 9:211740. https://doi.org/10.1098/rsos.211740
Mendonca R.S., Pinto P., Maeda T., Inoue S., Ringhofer M., Yamamoto S., Hirata S. (2022) Population characteristics of feral horses impacted by anthropogenic factors and their management implications. Frontiers in Ecology and Evolution. https://doi.org/10.3389/fevo.2022.848741
Brooks J., Kano F., Sato Y., Yeow H., Morimura N., Nagasawa M., Kikusui T., Yamamoto S. (2021) Divergent effects of oxytocin on eye contact in bonobos and chimpanzees Psychoneuroendocrinology, Volume 125, 105119. https://doi.org/10.1016/j.psyneuen.2020.105119
Maeda T., Ochi S., Ringhofer M., Sosa S., Sueur C., Hirata S., & Yamamoto S. (2021) Aerial drone observations identified a multilevel society in feral horses. Scientific Reports, 11, 1-12. https://doi.org/10.1038/s41598-020-79790-1
Brooks J. & Yamamoto S. (2021) Dog stick chewing: An overlooked instance of tool use? Frontiers in Psychology, 11:577100. https://doi.org/10.3389/fpsyg.2020.577100
Brooks, J., & Yamamoto, S. (2021) Response: Commentary: Dog Stick Chewing: An Overlooked Instance of Tool Use? Frontiers in Psychology, 12:757526. https://doi.org/10.3389/fpsyg.2021.757526
Brooks J., Onishi E., Clark I., Bohm M., & Yamamoto S. (2021) Uniting against a common enemy: perceived outgroup threat elicits ingroup cohesion in chimpanzees. PLoS ONE 16(2): e0246869. https://doi.org/10.1371/journal.pone.0246869
Ringhofer M., Trösch M., Lansade L., Yamamoto S. (2021) Horses with sustained attention follow the pointing of a human who knows where food is hidden. Scientific Reports, 11, 1-9. https://doi.org/10.1038/s41598-021-95727-8
Maeda T., Sueur C., Hirata S., & Yamamoto S. (2021) Behavioural synchronization in a multilevel society of feral horses. PLOS ONE, 16(10): e0258944. https://doi.org/10.1371/journal.pone.0258944
Brooks, J., & Yamamoto, S. (2021) The founder sociality hypothesis. Ecology and Evolution, 11(21), 14392-14404. https://doi.org/10.1002/ece3.8143
Yamamoto S. (2021) ‘Unwilling’ versus ‘unable’: Understanding chimpanzees’ restrictions in cognition and motivation. Psychologia, 63(2), 174-190. https://doi.org/10.2117/psysoc.2021-B020
Inoue S., Yamamoto S., Ringhofer M., Mendonça R.S., & Hirata S. (2020) Lateral position preference in grazing feral horses. Ethology, 126, 111-119. https://doi.org/10.1111/eth.12966
Ringhofer M., Go C.K.C., Inoue S., Mendonça R.S., Hirata S., Kubo T., Ikeda K., & Yamamoto S. (2020) Herding mechanisms to maintain the cohesion of a harem group: two interaction phases during herding. Journal of Ethology, 38, 71-77. https://doi.org/10.1007/s10164-019-00622-5
Onishi E., Brooks J., Leti I., Monghiemo C., Bokika J.C., Shintaku Y., Idani G. & Yamamoto S. (2020) Nkala forest: Introduction of a forest-savanna mosaic field site of wild bonobos and its future prospects. Pan Africa News, 27(1), 2-5.
Go C. K., Ringhofer M., Lao B., Kubo T., Yamamoto S., & Ikeda K. (2020) A mathematical model of hearding in horse-harem group. Journal of Ethology, 38, 343–353. https://doi.org/10.1007/s10164-020-00656-0
Yamamoto, S. (2020) The evolution of cooperation in dyads and in groups: two-by-two research comparing chimpanzees and bonobos in the wild and in the laboratory. In Hopper, L. & Ross, S. (Eds.), Chimpanzees in Context, The University of Chicago Press. pp. 330-345. https://doi.org/10.7208/9780226728032-017
Trösch M, Ringhofer M., Yamamoto S., Lemarchand J., Parias C., Lormant F., Lansade L. (2019) Horses prefer to solicit a person who previously observed a food-hiding process to access this food: A possible indication of attentional state attribution. Behavioural Processes, 166, 103906. https://doi.org/10.1016/j.beproc.2019.103906
Inoue S., Yamamoto S., Ringhofer M., Mendonça R.S., Pereira C., & Hirata S. (2019) Spatial positioning of individuals in a group of feral horses: a case study using drone technology. Mammal Research, 64, 249-259. DOI: 10.1007/s13364-018-0400-2
Yamamoto, S., Tokuyama, N., Clay, Z., & Hare, B. (2019) Chimpanzee and bonobo. In: Choe, J. (Ed.), the Encyclopedia of Animal Behavior, 2nd edition, Elsevier. Pp. 324-334.
Shinohara A. & Yamamoto S. (2018) No evidence for the watching-eyes effect on human impulsivity. Frontiers in Psychology, 9:1887. DOI: 10.3389/fpsyg.2018.01887
Yu, L., Hattori, Y., Yamamoto, S., & Tomonaga, M. (2018) Understanding empathy from interactional synchrony in humans and non-human primates. In Di Paolo, L.D. & Di Vincenzo, F. (Eds.), Evolution of Primate Social Cognition, Springer. Pp. 47-58.
Ringhofer M., Inoue S., Mendonça R.S., Pereira C., Matsuzawa T., Hirata S., Yamamoto S. (2017) Comparison of the social systems of primates and feral horses: data from a newly established horse research site in Serra D’Arga, northern Portugal. Primates, 58, 479-484. doi: 10.1007/s10329-017-0614-y
Ringhofer M., & Yamamoto S. (2017) Domestic horses send signals to humans when they face with an unsolvable task. Animal Cognition, 20, 397-405. DOI：10.1007/s10071-016-1056-4
Hare, B., & Yamamoto, S. (2017) Minding the bonobo mind. In B. Hare & S. Yamamoto (Eds.), Bonobos: Unique in mind, brain, and behaviour. Oxford: Oxford University Press. pp. 1-13.
Yamamoto, S. & Furuichi, T. (2017) Courtesy food sharing characterized by begging for social bonds in wild bonobos. In B. Hare & S. Yamamoto (Eds.), Bonobos: Unique in mind, brain, and behaviour. Oxford: Oxford University Press. pp. 125-139.
Yamamoto S. (2016) Primate empathy: three factors and their combinations for empathy-related phenomena. WIREs Cognitive Science, 8(3), e1431 doi: 10.1002/wcs.1431
Shinohara, A., & Yamamoto, S. (2016) Mirrors have a modest effect on human impulsivity. Letters on Evolutionary Behavioral Science, 7 (1), 25-28. doi: 10.5178/lebs.2016.46
Hare, B., & Yamamoto, S. (2015) Moving bonobos off the scientifically endangered list. Behaviour, 152, 247-258. DOI: 10.1163/1568539X-00003263
Yamamoto, S. (2015) Non-reciprocal but peaceful fruit sharing in the wild bonobos of Wamba. Behaviour, 152, 335-357. DOI: 10.1163/1568539X-00003257
Sakamaki, T., Behncke, I., Laporte, M., Mulavwa, M., Ryu, H., Takemoto, H., Tokuyama, N., Yamamoto, S., & Furuichi, T. (2015) Intergroup Transfer of Females and Social Relationships Between Immigrants and Residents in Bonobo (Pan paniscus) Societies. In T. Furuichi, J. Yamagiwa, & F. Aureli (Eds.), Dispersing Primate Females: Life History and Social Strategies in Male-Philopatric Species. Tokyo: Springer-Verlag, pp. 127-164.
Yamamoto, S., Humle, T., & Tanaka, M. (2013) Basis for cumulative cultural evolution in chimpanzees: social learning of a more efficient tool-use technique. PLoS ONE, 8(1): e55768. doi:10.1371/journal.pone.0055768
Yamamoto, S. (2013) Invention and modification of new tool-use behavior. In E. G. Carayannis (ed.), Encyclopedia of Creativity, Invention, Innovation, and Entrepreneurship. New York / Heidelberg: Springer, pp. 1131-1139.
Yamamoto, S., & Takimoto, A. (2012) Empathy and fairness: psychological mechanisms for eliciting and maintaining prosociality and cooperation in primates. Social Justice Research, 25(3), 233-255. DOI 10.1007/s11211-012-0160-0
Yamamoto, S., Humle, T., & Tanaka, M. (2012) Chimpanzees’ flexible targeted helping based on an understanding of conspecifics’ goals. Proceedings of the National Academy of Sciences, USA, 109 (9), 3588-3592. (doi: 10.1073/pnas.1108517109)
Yamamoto, S., Yamakoshi, G., Humle, T., & Matsuzawa, T. (2011) Ant-fishing in trees: invention and modification of a new tool use behavior. In T. Matsuzawa, T. Humle, & Y. Sugiyama (Eds.), The chimpanzees in Bossou and Nimba. Tokyo: Springer-Verlag, pp. 123-130.
Hirata, S., Yamamoto, S., Takemoto, H., & Matsuzawa, T. (2010) A case report of meat and fruit sharing in a pair of wild bonobos. Pan Africa News, 17 (2), 21-23.
Yamamoto, S., & Tanaka, M. (2010) The influence of kin relationship and reciprocal context on chimpanzees' other-regarding preferences. Animal Behaviour, 79 (3), 595-602.
Yamamoto, S., Humle, T., & Tanaka, M. (2009) Chimpanzees help each other upon request. PLoS ONE, 4 (10): e7416. doi:10.1371/journal.pone.0007416
Tanaka, M., & Yamamoto, S. (2009) Token transfer between mother and offspring chimpanzees (Pan troglodytes): mother-offspring interaction in a competitive situation. Animal Cognition, 12 (supplement 1), 19-26.
Yamamoto, S., & Tanaka, M. (2009) Selfish strategies develop in social problem situations in chimpanzee (Pan troglodytes) mother–infant pairs. Animal Cognition, 12 (supplement 1), 27-36.
Yamamoto, S., & Tanaka, M. (2009) Do chimpanzees (Pan troglodytes) spontaneously take turns in a reciprocal cooperation task? Journal of Comparative Psychology, 123 (3), 242-249.
Yamamoto, S., & Tanaka, M. (2009) How did altruistic cooperation evolve in humans? Perspectives from experiments on chimpanzees (Pan troglodytes). Interaction Studies, 10 (2), 150-182.
Yamamoto, S., Yamakoshi, G., Humle, T., & Matsuzawa, T. (2008) Invention and modification of a new tool use behavior: ant-fishing in trees by a wild chimpanzee (Pan troglodytes verus) at Bossou, Guinea. American Journal of Primatology, 70, 699-702.
Hare, B., & Yamamoto, S. Eds. (2015) Bonobo Cognition and Behaviour. Leiden: Brill.
Hare, B., & Yamamoto, S. Eds. (2017) Bonobos: Unique in mind, brain, and behaviour. Oxford: Oxford University Press. Total: ISBN: 9780198728511
査読付学術論文はこちら：https://researchmap.jp/ShinyaYamamoto1981/published_papers
書籍等出版物はこちら：https://researchmap.jp/ShinyaYamamoto1981/books_etc
その他和文著作物はこちら：https://researchmap.jp/ShinyaYamamoto1981/misc
以下、最近の主なものを掲載します：
山本真也 (2025) 戦争と協力の進化的起源. 世界思想 2025春52号, 36-39. PDF
山本真也 (2025) 動物に見る「利他的行為と思考」とは. 清流出版『倫風』, 2025年8月号, 24-27. PDF
山本真也 (2025) 動物の行動から「人間らしさ」の謎に迫る：集団観察からホルモン投与まで多面的に. JST news, 2025年9月号, 8-11. PDF
山本真也（2023）「できる」けど「しない」チンパンジー：認知的制約と動機的制約. 基礎心理学研究, 41(2), 125-130. PDF
山本真也（2023）「ヒトとは何か」を探る動物研究. 河出書房新社（編）：最前線に立つ研究者１５人の白熱！講義 生きものは不思議. 河出書房新社. pp. 268-283. PDF
山本真也、前田玉青 (2023) ドローンが明らかにするウマの重層社会. 日本バイオロギング研究会会報, 198, 11-12. PDF
山本真也、クリスティン・リン (2023) 霊長類の共感性と社会的情動. 科学 93(8): 692-696.
山本真也 (2023) 「ワイワイワイルドライフ」連載第6回～野生アジアゾウ研究の展望～. モンキー8(2):42-43.
山本真也（2021）家畜化による心の変化：比較認知科学からの提案. 科学 91(2): 173-177.
山本真也 (2020) 比較認知科学からみた共感の進化. 臨床科学 20(3): 254-257
山本真也、リングホーファー萌奈美 (2020) 「ウマ学ことはじめ」連載第16回～ヒトの心を読むウマ～. モンキー 4(4): 98-99.
山本真也 (2019) 信頼の進化生物学－チンパンジーから考えるこれからのヒト社会のかたち. New Trust Vol. 0: 38-41
山本真也 (2018) 「ウマ学ことはじめ」連載第9回～ウマの群れ間関係～. モンキー 3(1): 14-15.
山本真也 (2018) チンパンジー・ボノボからみる戦争と協力の進化. 科学 88(11): 1109-1113.
山本真也 (2016) ちびっこチンパンジーと仲間たち（第174回）―サバンナ混交林に住むボノボ―. 科学 86(6): 620-621