Sibships: Cooperation and competition among immature vervet monkeys

  title={Sibships: Cooperation and competition among immature vervet monkeys},
  author={P. C. Lee},
The relationships between siblings were compared with those between non-sibling peers amongst immature vervet monkeys (Cercopithecus aethiops) in three free-ranging social groups. Using the frequency and context of friendly, supportive, aggressive, and competitive interactions, sibships were found to stand out as associative units characterized by high levels of grooming and support during aggression. Competition between siblings was related to contests over access to maternal care, especially… 

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