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Some human traits may have arisen by sexual selection. Over thousands of years, women attracted to charming, witty men perhaps prompted the development of human intellect beyond what was necessary for mere survival Men attracted to women with juvenile features may have shifted the species as a whole to be less hairy and softer featured than any of our simian relatives. Can you think or a way to test this hypothesis?

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Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
Publisher: Cengage Learning
ISBN: 9781337408332

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Chapter
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BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
Publisher: Cengage Learning
ISBN: 9781337408332
Chapter 17, Problem 4CT
Textbook Problem
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Some human traits may have arisen by sexual selection. Over thousands of years, women attracted to charming, witty men perhaps prompted the development of human intellect beyond what was necessary for mere survival Men attracted to women with juvenile features may have shifted the species as a whole to be less hairy and softer featured than any of our simian relatives. Can you think or a way to test this hypothesis?

Summary Introduction

To test: The given hypothesis for evolution of human traits arisen by sexual selection.

Concept introduction: Sexual selection is the process or a form of natural selection where a member of one sex chooses its mate from the opposite sex (intersexual selection) and to mate with the opposite sex, it should compete with the member of the same sex (intrasexual selection). Sexual selection leads to the evolution of some traits that help in sexual attractiveness among the partners.

Explanation of Solution

As given in the problem statement, women were attracted to witty charming men and men were attracted to women with juvenile features. Unique kind of human traits are evolved as a result of sexual selection. Such features are acquired and are inherited to future generations to attract the opposite sex. To test the hypothesis, we have to conduct the following experiments to demonstrate the pattern of mate selection on the basis of unique traits. In these experiments, the person or a group of people could be videotaped and shown to the opposite sex. It is observed whether they select the persons with unique characteristics, then only this hypothesis will be stated as true.

Experiment No: 1

  • Numerous men are videotaped and the social behaviors of men that make them defined as “witty” and “charming” are displayed to the females.
  • The hypothesis could be only stated true only if the sample population of females majorly prefers and selects the behavior of men that are identified and characterized as witty and charming.

Experiment No: 2

  • This experiment is done to know whether the females are more interested in the physical traits of men than social behaviors (witty and charming personality)...

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