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Related Concept Videos

Cognitive Dissonance01:38

Cognitive Dissonance

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Social psychologists have documented that feeling good about ourselves and maintaining positive self-esteem is a powerful motivator of human behavior (Tavris & Aronson, 2008). In the United States, members of the predominant culture typically think very highly of themselves and view themselves as good people who are above average on many desirable traits (Ehrlinger, Gilovich, & Ross, 2005). Often, our behavior, attitudes, and beliefs are affected when we experience a threat to our...
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Moment of a Couple: Problem Solving01:30

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The moment of couple is an essential concept in physics and engineering, used to calculate the rotational force, or torque, that is created when a couple —two equal and opposite forces—acts on an object.
The moment of a couple is found by multiplying the magnitude of one of the forces by the perpendicular distance between the line of action of the two forces. This creates a twisting force, which can be used to rotate an object. The moment of a couple is used to solve problems...
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Equivalent Couples01:28

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In mechanical engineering, the concept of equivalent couples plays a crucial role in understanding and analyzing various mechanical systems.
Two couples are considered to be equivalent if they produce the same rotational effect on a rigid body. In other words, the two couples have the same magnitude and act in the same direction, causing the same angular displacement or acceleration in the body.
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Couple01:29

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A couple is a pair of parallel forces equal in magnitude but in opposite directions. The forces are separated by a perpendicular distance, known as the couple's arm. The couple causes a rotation force or moment that rotates the body about an axis perpendicular to the plane of the forces. The resulting moment is referred to as the couple moment. The SI unit of a couple moment is the Newton-meter (N-m).
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Groupthink01:34

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When in group settings, we are often influenced by the thoughts, feelings, and behaviors around us. Groupthink is another phenomenon of conformity where modification of the opinions of members in a group aligns with what they believe is the group consensus (Janis, 1972). In such situations, the group often takes action that individuals would not perform outside the group setting because groups make more extreme decisions than individuals do. Moreover, groupthink can hinder opposing trains of...
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In a three-dimensional system, multiple forces can act on an object. These forces can be combined into a single equivalent force, known as the resultant force. Similarly, the moments generated by these forces can be combined into a single equivalent moment, the resultant couple moment. In certain situations, these two entities may not be mutually perpendicular, meaning they do not have a 90-degree angle between them. This unique condition requires a deeper understanding of the interplay between...
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Related Experiment Video

Updated: Jul 3, 2025

How to Create and Use Binocular Rivalry
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The cuckoldry conundrum.

Brooke A Scelza1

  • 1Department of Anthropology, UCLA Anthropology, Los Angeles, CA, USA.

Evolutionary Anthropology
|February 10, 2024
PubMed
Summary

Evolutionary studies often focus on male fears of cuckoldry. However, research suggests men may benefit from investing in non-biological offspring, challenging traditional views on paternity and reproductive strategies.

Area of Science:

  • Evolutionary Anthropology
  • Human Mating Behavior
  • Reproductive Strategies

Background:

  • Cuckoldry concerns dominate evolutionary mating studies, explaining sex differences in reproductive strategies.
  • Nonhuman species research reveals potential benefits of cuckoldry, insights often overlooked in human literature.
  • Human models predominantly focus on male anticuckoldry tactics and negative repercussions.

Purpose of the Study:

  • To evaluate assumptions in human cuckoldry models: that men are tricked into investing in non-biological offspring and that such investment is wasted.
  • To integrate findings from nonhuman species with human literature on mating and paternity.

Main Methods:

  • Analysis of ethnographic data on fatherhood and paternity concepts.
  • Review of evolutionary studies on mating and reproductive strategies.
Keywords:
cuckoldryfatherhoodparental investmentpaternityreproductive strategies

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Main Results:

  • Ethnographic data reveals complex, locally constructed ideas of pater and genitor, often including knowledge of extra-pair paternity, contradicting the 'trickery' assumption.
  • Paternity loss, contrary to being a 'waste,' can be associated with significant gains for men, explaining investment in non-biological offspring.

Conclusions:

  • Human models of cuckoldry need revision to account for the complex realities of paternity and potential male benefits.
  • Understanding non-biological offspring investment requires moving beyond assumptions of deception and waste, considering potential gains for men.