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Strong and Consistent Social Bonds Enhance the Longevity of Female Baboons
Longevity is a major component of variation in fitness in long-lived iteroparous species [1-4]. Among female baboons, variation in breeding lifespan accounts for approximately 50% of the variation inExpand
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The benefits of social capital: close social bonds among female baboons enhance offspring survival
Sociality has evolved in many animal taxa, but primates are unusual because they establish highly differentiated bonds with other group members. Such bonds are particularly pronounced among femalesExpand
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Female chacma baboons form strong, equitable, and enduring social bonds
Analyses of the pattern of associations, social interactions, coalitions, and aggression among chacma baboons (Papio hamadryas ursinus) in the Okavango Delta of Botswana over a 16-year periodExpand
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Paternity alone does not predict long-term investment in juveniles by male baboons
Adult male chacma baboons (Papio hamadryas ursinus) form preferential associations, or friendships, with particular lactating females. Males exhibit high levels of affiliative contact with theirExpand
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Hedging their bets? Male and female chacma baboons form friendships based on likelihood of paternity
In chacma baboons (Papio hamadryas ursinus), adult males and lactating females form preferential associations, or ‘friendships’, that provide protection against potentially infanticidal attacks.Expand
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Fruit availability, chimpanzee diet, and grouping patterns on Rubondo Island, Tanzania
We examined seasonal patterns of fruit availability, dietary quality, and group size in the descendants of an introduced chimpanzee population on Rubondo Island, Tanzania. The site has supported aExpand
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Gastrointestinal parasites of the chimpanzee population introduced onto Rubondo Island National Park, Tanzania
The release of any species into a novel environment can evoke transmission of parasites that do not normally parasitize the host as well as potentially introducing new parasites into the environment.Expand
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Peripheral oxytocin in female baboons relates to estrous state and maintenance of sexual consortships
The neuro-hypophysial hormone oxytocin (OT) has been implicated in female reproductive and maternal behaviors and in the formation of pair bonds in monogamous species. Here we measure variation inExpand
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Contingent cooperation between wild female baboons
The apparent rarity of contingent cooperation in animals has convinced many investigators that such reciprocity is unimportant, stimulating consideration of alternative explanations for cooperation,Expand
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Stable and fluctuating social preferences and implications for cooperation among female bonobos at LuiKotale, Salonga National Park, DRC.
OBJECTIVES Female bonobos (Pan paniscus) are characterized as highly affiliative and cooperative, but few studies have quantified the strength and stability of female intra-sexual relationships orExpand
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