Origin Then and Now

Preface ix Acknowledgments xv Introduction: Charles Darwin and the Origin of Species 3 Michael Ruse Part One: Natural Selection Chapter 1: Preamble to Natural Selection 29 Chapter 2: Variation under Domestication 38 Chapter 3: Variation under Nature I 56 Chapter 4: The Struggle for Existence 66 Chapter 5: Natural Selection I 77 Chapter 6: Laws of Variation 102 Chapter 7: E volution Today: A Modern Perspective on Natural Selection 119 Part Two: Speciation Chapter 8: Preamble to Speciation 137 Chapter 9: Variation under Nature II 152 Chapter 10: Natural Selection II 164 Chapter 11: Hybridism 190 Chapter 12: E volution Today: The Mosquitoes of the London Underground 205 Part Three: Theory Chapter 13: Preamble: What Is a Theory? 219 Chapter 14: Difficulties on Theory 227 Chapter 15: Instinct 250 Chapter 16: Geology I: Background 264 Chapter 17: Geology II: On the Imperfection of the Geological Record 275 Chapter 18: Geology III: On the Geological Succession of Organic Beings 288 Chapter 19: Geology IV: Evolution Today 301 Chapter 20: Geographical Distribution 314 Chapter 21: Geographical Distribution, Continued 331 Chapter 22: Mutual Affinities of Organic Beings: Morphology: Embryology: Rudimentary Organs 346 Chapter 23: Recapitulation and Conclusion 381 Chapter 24: E volution Today: The Witness Has Been Found, Again and Again 401 Illustration Credits 417 Index 419

David N. Reznick is professor of biology at the University of California, Riverside.

"This is a beautiful book--the best book I have ever read dealing with the Origin. It will move many people, experts and lay readers alike."--Lee Alan Dugatkin, author of Principles of Animal Behavior