Prosocial and antisocial choices in a monogamous cichlid with biparental care

Shun Satoh (), Redouan Bshary, Momoko Shibasaki, Seishiro Inaba, Shumpei Sogawa, Takashi Hotta, Satoshi Awata and Masanori Kohda
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Shun Satoh: Osaka City University
Redouan Bshary: University of Neuchâtel, Institute of Zoology
Momoko Shibasaki: Osaka City University
Seishiro Inaba: Osaka City University
Shumpei Sogawa: Osaka City University
Takashi Hotta: Graduate School of Letters, Kyoto University
Satoshi Awata: Osaka City University
Masanori Kohda: Osaka City University

Nature Communications, 2021, vol. 12, issue 1, 1-7

Abstract: Abstract Human society is cooperative and characterized by spontaneous prosociality. Comparative studies on endotherm vertebrates suggest that social interdependence causes the evolution of proactive prosociality. To test the generality of this hypothesis, we modify a prosocial choice task for application to the convict cichlid, Amatitlania nigrofasciata, a monogamous fish with biparental care and a strong pair bond. We also affirm that male subjects learn to favor prosocial choices when their mates are the recipients in a neighboring tank. When the neighboring tank is empty, males choose randomly. Furthermore, in the absence of their mates, males behave prosocially toward a stranger female. However, if the mate of the subjects is also visible in the third tank, or if a male is a potential recipient, then subjects make antisocial choices. To conclude, fish may show both spontaneous prosocial and antisocial behaviors according to their social relationships with conspecifics and the overall social context.

Date: 2021
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DOI: 10.1038/s41467-021-22075-6

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