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Monkey responses to three different alarm calls: evidence of predator classification and semantic communication.
Recordings of the alarms played back when predators were absent caused Vervet monkeys to run into trees for leopard alarms, look up for eagle alarms, and look down for snake alarms. Expand
A model of social grooming among adult female monkeys.
  • R. Seyfarth
  • Psychology, Medicine
  • Journal of theoretical biology
  • 21 April 1977
A theoretical model which duplicates two similar features of grooming networks among adult female monkeys shows how relatively simple principles governing the behaviour of individuals may be used to explain more complex aspects of the social structure of non-human primate groups. Expand
Strong and Consistent Social Bonds Enhance the Longevity of Female Baboons
It is shown that dominance rank and the quality of close social bonds have independent effects on the longevity of female chacma baboons (Papio hamadryas ursinus), and females who form stronger and more stable social bonds with other females live significantly longer than Females who form weaker and less stable relationships. Expand
Vervet monkey alarm calls: Semantic communication in a free-ranging primate
It is concluded that vervet alarm calls function to designate different classes of external danger, and context was not a systematic determinant of response. Expand
How Monkeys See the World
Acknowledgments 1. What Is It Like to be a Monkey? 2. Social Behavior 3. Social Knowledge 4. Vocal Communication 5. What the Vocalizations of Monkeys Mean 6. Summarizing the MentalExpand
The adaptive value of ‘friendships’ to female baboons: experimental and observational evidence
Both observations and experiments suggest that the benefits of friendships to females derive from the protection of their infants against infanticide. Expand
Signalers and receivers in animal communication.
In animal communication natural selection favors callers who vocalize to affect the behavior of listeners and listeners who acquire information from vocalizations, using this information to representExpand
The benefits of social capital: close social bonds among female baboons enhance offspring survival
In a group of free-ranging baboons, Papio cynocephalus ursinus, the offspring of females who formed strong social bonds with other females lived significantly longer than the offspring who formed weaker social bonds, providing the first direct evidence that social relationships among female baboons convey fitness benefits. Expand
Diana monkey long-distance calls: messages for conspecifics and predators
Abstract Primate long-distance calls have typically been interpreted as communication signals between conspecific groups (the ‘resource defence hypothesis’), but their potential role as anti-predatorExpand