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17 - Runaway Processes in Modern Human Culture

An Evolutionary Approach to Exaggerated Communication in Present Human Societies

from Part V - Evolution and Cognition

Published online by Cambridge University Press:  02 March 2020

By
Ádám Miklósi  and
Veronika Konok
Edited by
Lance Workman ,
Will Reader  and
Jerome H. Barkow
Lance Workman
Affiliation:
University of South Wales
Will Reader
Affiliation:
Sheffield Hallam University
Jerome H. Barkow
Affiliation:
Dalhousie University, Nova Scotia
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Summary

In biology, runaway selection has been proposed as an evolutionary mechanism to explain the emergence of exaggerated morphological and behavior features in animals. Such runaway processes usually manifest if there is a fundamental change in the constraints that control the emergence of a specific trait. Here, we argue that the exaggerated communication in modern humans is the expression of a biological feature that has been liberated from environmental control. Social evolution of humans has led to increased group size, which, in turn, selected for a biologically supported need for communication in order to continuously keep contact with an increasing number of group members. This selection process led eventually to the emergence of language a few tens of thousands of years ago. However, up to a few hundred years ago, spoken communication was limited by spatial and temporal constraints.

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The Cambridge Handbook of Evolutionary Perspectives on Human Behavior , pp. 211 - 224
Publisher: Cambridge University Press
Print publication year: 2020

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