The viral story of Punch, a baby Japanese macaque abandoned by its mother and comforted with a stuffed toy at a Japanese zoo, has drawn attention to the complex social behaviour of macaques. These primates live in tightly structured troops governed by strict dominance hierarchies that shape access to food, protection and social interaction.
Female macaque hierarchy is largely matrilineal, where rank is inherited from the mother, while male status is typically determined through alliances and physical competition. A notable behavioural feature is the “youngest sister rule,” observed in Japanese macaques, where younger female siblings often hold higher rank than older ones within the same lineage.
APSC Relevance: Animal behaviour studies, primate social organisation, biodiversity awareness, and examples from zoology relevant to environment and ecology topics.
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