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Updated: Dec 20, 2025

A Complex Diving-For-Food Task to Investigate Social Organization and Interactions in Rats
Published on: May 8, 2021
Multilevel Organisation of Animal Sociality
Cyril C Grueter1, Xiaoguang Qi2, Dietmar Zinner3
1School of Human Sciences, The University of Western Australia, Perth, WA 6009, Australia; Centre for Evolutionary Biology, School of Biological Sciences, The University of Western Australia, Perth, WA 6009, Australia.
Abstract:
Multilevel societies (MLSs), stable nuclear social units within a larger collective encompassing multiple nested social levels, occur in several mammalian lineages. Their architectural complexity and size impose specific demands on their members requiring adaptive solutions in multiple domains. The functional significance of MLSs lies in their members being equipped to reap the benefits of multiple group sizes. Here, we propose a unifying terminology and operational definition of MLS. To identify new avenues for integrative research, we synthesise current literature on the selective pressures underlying the evolution of MLSs and their implications for cognition, intersexual conflict, and sexual selection. Mapping the drivers and consequences of MLS provides a reference point for the social evolution of many taxa, including our own species.
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