Includes bibliographical references (pages 153-164) and index.
CONTENTS NOTE
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The zero-force evolutionary law -- Randomness, hierarchy, and constraint -- Diversity -- Complexity -- Evidence, predictions, and tests -- Philosophical foundations -- Implications.
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SUMMARY OR ABSTRACT
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Life on earth is characterized by three striking phenomena that demand explanation: adaptation--the marvelous fit between organism and environment; diversity--the great variety of organisms; and complexity--the enormous intricacy of their internal structure. Natural selection explains adaptation. But what explains diversity and complexity? Daniel W. McShea and Robert N. Brandon argue that there exists in evolution a spontaneous tendency toward increased diversity and complexity, one that acts whether natural selection is present or not. They call this tendency a biological law--the Zero-Force Evol.