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Many animals appear to monitor changes in other individuals' dominance ranks and social relationships and to track changes in them. However, it is not known whether they also track changes in very transient relationships. Rapid recognition of a temporary separation between a dominant male and a sexually receptive female, for example, should be adaptive in species where subordinate males use opportunistic...
Identifying the cognitive challenges of sociality can be difficult because similar social interactions may be based on very different cognitive mechanisms. To better understand the cognitive mechanisms associated with a particular interaction, we investigated the social information that gelada, Theropithecus gelada, bachelors use to assess rival males. Gelada bachelors may use a variety of assessment...
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