Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Ethics in Research01:56

Ethics in Research

24.8K
Today, scientists agree that good research is ethical in nature and is guided by a basic respect for human dignity and safety. However, this has not always been the case. Modern researchers must demonstrate that the research they perform is ethically sound.
24.8K
Evolutionary Psychology01:20

Evolutionary Psychology

509
Evolutionary psychology explores the origins of human behavior and mental processes by framing them within the context of natural selection, a theory famously propounded by Charles Darwin. This field asserts that many behaviors common across human societies — ranging from instinctive fear reactions to complex social interactions — arose as evolutionary adaptations. These adaptations enhanced the survival and reproductive success of our ancestors, thereby becoming embedded in the...
509
Naturalistic Observations02:30

Naturalistic Observations

16.5K
If you want to understand how behavior occurs, one of the best ways to gain information is to simply observe the behavior in its natural context. However, people might change their behavior in unexpected ways if they know they are being observed. How do researchers obtain accurate information when people tend to hide their natural behavior? As an example, imagine that your professor asks everyone in your class to raise their hand if they always wash their hands after using the restroom. Chances...
16.5K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Why do some primate mothers carry their infant's corpse? A cross-species comparative study.

Proceedings. Biological sciences·2021
Same author

Age-specific birth rate and lifetime reproductive success of chimpanzees at Bossou, Guinea.

American journal of primatology·2020
Same author

Drinking tools of wild chimpanzees at Bossou.

American journal of primatology·2020
Same author

Sex-biased dispersal of human ancestors.

Evolutionary anthropology·2017
Same author

Congenital malformations in Japanese macaques (Macaca fuscata) at Takasakiyama.

Primates; journal of primatology·2014
Same author

Twinning frequency of Japanese Macaques (Macaca fuscata) at Takasakiyama.

Primates; journal of primatology·2010

Related Experiment Video

Updated: Oct 7, 2025

Dissecting the Non-human Primate Brain in Stereotaxic Space
09:09

Dissecting the Non-human Primate Brain in Stereotaxic Space

Published on: July 16, 2009

10.2K

My primate studies.

Yukimaru Sugiyama1

  • 1Primate Research Station, Kitabesso 23-3, Inuyama, 484-0081, Japan. sugiyamayukimaru@yahoo.co.jp.

Primates; Journal of Primatology
|January 5, 2022
PubMed
Summary

This 62-year primatology study details Japanese macaque troop division, Hanuman langur infanticide, and chimpanzee tool use, highlighting environmental impacts on primate behavior and social structures.

Area of Science:

  • Primatology
  • Ethology
  • Behavioral Ecology

Background:

  • Long-term fieldwork across Japan, India, and Africa provides insights into primate social structures and behaviors.
  • Previous research often overlooked or dismissed critical behavioral observations in nonhuman primates.

Purpose of the Study:

  • To document key findings from 62 years of primatology research.
  • To analyze social dynamics, reproductive strategies, and tool use in Japanese macaques, Hanuman langurs, and chimpanzees.
  • To emphasize the importance of environmental context in understanding primate behavior.

Main Methods:

  • Field observations of Japanese macaques (Macaca fuscata) at Takasakiyama, Japan.
  • Field studies of Hanuman langurs (Semnopithecus entellus) at Dharwar, India.
Keywords:
ChimpanzeeHanuman langurInfanticideJapanese macaquePopulation dynamicsTool-using behavior

More Related Videos

Assessment of Social Cognition in Non-human Primates Using a Network of Computerized Automated Learning Device ALDM Test Systems
08:42

Assessment of Social Cognition in Non-human Primates Using a Network of Computerized Automated Learning Device ALDM Test Systems

Published on: May 5, 2015

12.3K
Behavioral Assessment of Manual Dexterity in Non-Human Primates
16:00

Behavioral Assessment of Manual Dexterity in Non-Human Primates

Published on: November 11, 2011

22.6K

Related Experiment Videos

Last Updated: Oct 7, 2025

Dissecting the Non-human Primate Brain in Stereotaxic Space
09:09

Dissecting the Non-human Primate Brain in Stereotaxic Space

Published on: July 16, 2009

10.2K
Assessment of Social Cognition in Non-human Primates Using a Network of Computerized Automated Learning Device ALDM Test Systems
08:42

Assessment of Social Cognition in Non-human Primates Using a Network of Computerized Automated Learning Device ALDM Test Systems

Published on: May 5, 2015

12.3K
Behavioral Assessment of Manual Dexterity in Non-Human Primates
16:00

Behavioral Assessment of Manual Dexterity in Non-Human Primates

Published on: November 11, 2011

22.6K
  • Field research on chimpanzees (Pan troglodytes) at Bossou, Guinea.

    • Main Results:

    • Japanese macaque troop division influenced by artificial feeding and dominance hierarchies.
    • Hanuman langur social system involves male takeovers, infanticide, and subsequent female estrus.
    • Chimpanzee tool use varies geographically, suggesting cultural zones and unique tool traditions at Bossou.
    • Observations of twin births, maternal care of dead infants, and physical malformations in Japanese macaques.

    Conclusions:

    • Artificial feeding can exaggerate dominance hierarchies and influence social dynamics in Japanese macaques.
    • Infanticide in Hanuman langurs is a mechanism for maintaining the one-male, multi-female group structure.
    • Chimpanzee tool use exhibits regional variations, indicating cultural transmission.
    • Accurate reporting of environmental context is crucial for interpreting primate behavior in scientific literature.