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

Relationship Formation02:12

Relationship Formation

41.0K
What do you think is the single most influential factor in determining with whom you become friends and whom you form romantic relationships? You might be surprised to learn that the answer is simple: the people with whom you have the most contact. This most important factor is proximity. You are more likely to be friends with people you have regular contact with. For example, there are decades of research that shows that you are more likely to become friends with people who live in your dorm,...
41.0K
Criticisms of the Evolutionary Perspective01:23

Criticisms of the Evolutionary Perspective

157
In a study where individuals posing as strangers offered compliments and proposed casual sex to students, the responses differed significantly based on gender. Not a single woman accepted the proposal, while 70% of the men agreed. This outcome provides a useful scenario to explore through the lens of evolutionary psychology and social learning theory, highlighting the diverse perspectives on human sexual behaviors.
Evolutionary psychology provides one explanation for these findings, suggesting...
157
The Ratio of X Chromosome to Autosomes02:45

The Ratio of X Chromosome to Autosomes

8.8K
In most organisms, sex is determined by the ratio of X and Y chromosomes. However, in some organisms, such as Drosophila and C.elegans, sex is determined by the ratio of the number of X chromosomes to the number of sets of autosomes. The Y chromosome in Drosophila is active but does not determine sex. It contains genes responsible for the production of sperms in adult flies.  
Normal male Drosophila has a ratio of one X chromosome to two sets of autosomes. In contrast, normal female...
8.8K
Aggression01:47

Aggression

28.0K
Humans engage in aggression when they seek to cause harm or pain to another person. Aggression takes two forms depending on one’s motives: hostile or instrumental. Hostile aggression is motivated by feelings of anger with intent to cause pain; a fight in a bar with a stranger is an example of hostile aggression. In contrast, instrumental aggression is motivated by achieving a goal and does not necessarily involve intent to cause pain (Berkowitz, 1993); a contract killer who murders for...
28.0K
Socioemotional Experience and Gender Development01:30

Socioemotional Experience and Gender Development

78
Social-emotional experiences and cultural influences play significant roles in shaping gender development. During middle childhood, from ages 6 to 11, peer groups become dominant in reinforcing gender norms. Children in this age group often align with same-gender peer groups, which actively encourage behaviors that conform to traditional gender roles. For instance, boys may be discouraged from engaging in activities perceived as feminine, reinforcing culturally dictated norms about masculinity...
78
Dosage Compensation02:50

Dosage Compensation

6.3K
In animals, gender is determined by the number and type of sex chromosome. For example, human females have two X chromosomes, and males have one X and one Y chromosome, whereas C.elegans with one X chromosome is a male, and the one with two X chromosomes is a hermaphrodite.
In addition to sexual development, the X chromosome has genes involved in autosomal functions such as brain development and the immune system. Therefore, males and females with  distinct numbers of X chromosomes will...
6.3K

You might also read

Related Articles

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

Sort by
Same author

Disparate social structures are underpinned by distinct social rules across a primate radiation.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

Fathers' caregiving time before and after the COVID-19 pandemic.

PloS one·2026
Same author

No need for tiers to explain the ecological predictors of human life history strategies.

The Behavioral and brain sciences·2025
Same author

Social patterns underlying a new group formation in olive baboons.

PloS one·2025
Same author

Testing early life effects frameworks: developmental constraints and adaptive response hypotheses do not explain fertility outcomes in wild female baboons.

Proceedings. Biological sciences·2025
Same author

CAUSAL MEDIATION ANALYSIS FOR SPARSE AND IRREGULAR LONGITUDINAL DATA.

The annals of applied statistics·2025

Related Experiment Video

Updated: Sep 10, 2025

Peering into the Dynamics of Social Interactions: Measuring Play Fighting in Rats
15:01

Peering into the Dynamics of Social Interactions: Measuring Play Fighting in Rats

Published on: January 18, 2013

15.4K

Animal behavior: Female power and leverage in gorilla societies.

Joan B Silk1, Stacy Rosenbaum2

  • 1School of Human Evolution and Social Change, Arizona State University, Tempe, AZ 85281, USA; Institute for Human Origins, Tempe, AZ 85281, USA.

Current Biology : CB
|August 19, 2025
PubMed
Summary

Female mountain gorillas, despite being smaller than males, can dominate them. They achieve this dominance by forming alliances with high-ranking males to assert power over others.

More Related Videos

Assessing Social Dominance in Mouse Models Using the Tube Test
03:34

Assessing Social Dominance in Mouse Models Using the Tube Test

Published on: June 6, 2025

419
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

22.5K

Related Experiment Videos

Last Updated: Sep 10, 2025

Peering into the Dynamics of Social Interactions: Measuring Play Fighting in Rats
15:01

Peering into the Dynamics of Social Interactions: Measuring Play Fighting in Rats

Published on: January 18, 2013

15.4K
Assessing Social Dominance in Mouse Models Using the Tube Test
03:34

Assessing Social Dominance in Mouse Models Using the Tube Test

Published on: June 6, 2025

419
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

22.5K

Area of Science:

  • Primate behavior
  • Animal sociology
  • Gorilla studies

Background:

  • Sexual dimorphism is pronounced in gorillas, with males significantly larger and possessing larger canines than females.
  • Social structures in multi-male mountain gorilla groups are complex and not solely dictated by physical size.

Purpose of the Study:

  • To investigate the social dynamics and dominance hierarchies within multi-male mountain gorilla groups.
  • To understand the factors enabling female gorillas to exert dominance over some adult males.

Main Methods:

  • Observational studies of mountain gorilla social interactions.
  • Analysis of dominance interactions and social relationships within established gorilla groups.

Main Results:

  • Most female gorillas in multi-male groups demonstrate the ability to dominate certain adult males.
  • Female dominance is often facilitated by strategic alliances with high-ranking males within the group.

Conclusions:

  • Female gorillas can overcome size disadvantages to influence social hierarchies.
  • Relationship-based power dynamics play a crucial role in the social structure of mountain gorillas, challenging purely size-based dominance models.