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Updated: May 24, 2026

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Sampling and Analysis of Animal Scent Signals
Published on: February 13, 2021
Evidence for scent marking in vervet monkeys?
N J Freeman1, G M Pasternak, T L Rubi
1Department of Psychology, University of Lethbridge, Lethbridge, AB, T1K 3M4, Canada. nataliejeanfreeman@gmail.com
Primates; Journal of Primatology
|March 10, 2012
Summary
Vervet monkeys (Chlorocebus aethiops) may use chest rubbing as a scent-marking behavior, particularly higher-ranking males during the breeding season in territorial areas. Further research is needed to confirm the role of olfactory cues in catarrhine communication.
Area of Science:
- Primatology
- Ethology
- Animal Behavior
Background:
- Vervet monkeys (Chlorocebus aethiops) exhibit conspicuous chest-rubbing behavior.
- The function of this behavior, specifically as scent marking, remains under investigation.
Purpose of the Study:
- To assess whether chest rubbing in vervet monkeys serves as a form of scent marking.
- To investigate the social and ecological contexts associated with chest-rubbing behavior.
Main Methods:
- Observational data were collected from two free-ranging troops of vervet monkeys.
- Behavioral patterns of chest rubbing were analyzed in relation to social rank, breeding season, and territorial encounters.
Main Results:
- Chest rubbing was more frequent in higher-ranking males.
- The behavior was more prevalent during the breeding season and in areas where territorial encounters occurred.
- Chest rubbing was not directly triggered by inter-troop encounters.
Conclusions:
- The findings suggest that chest rubbing in vervet monkeys is likely a scent-marking behavior.
- This behavior is associated with social status and territoriality, particularly in males.
- Olfactory cues may play a significant role in communication among catarrhine primates.

