Why Evolution Is True
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Why Evolution Is True

Jerry A. Coyne

4.3509 learners

In Jerry A. Coyne’s *Why Evolution Is True*, readers get a rigorous, accessible defense of evolution as an undeniable scientific fact, not just a theoretical guess. Drawing on decades of cross-disciplinary research—from paleontology and genetics to biogeography and ecology—Coyne systematically dismantles common myths, from the "perfect design" argument to misunderstandings about what a "scientific theory" actually means. He breaks down core evolutionary mechanisms: natural selection, genetic drift, sexual selection, and speciation, using vivid examples like antibiotic-resistant bacteria, Galápagos finches, and transitional fossils such as Tiktaalik and Archaeopteryx. The book also traces human evolution from African hominids to modern humans, and addresses ethical concerns about evolution’s perceived impact on morality. By weaving together interconnected evidence, Coyne shows that evolution isn’t just a concept—it’s the foundational framework for understanding all life on Earth, spanning 3.5 billion years of extraordinary, unplanned change.

natural selectionconvergent evolutionsexual selectionFossil RecordHuman Evolution
Concept

What Is Evolution?

Evolution refers to genetic changes in populations over generations, driven by mechanisms like natural selection and genetic drift. It explains how species adapt and diversify over time.

EvolutionGenetic ChangeMechanisms
Concept

Genetic Drift

Genetic drift is random gene frequency change in small populations (e.g., Amish rare traits). It's not due to adaptation.

Genetic DriftSmall PopulationsRandom Change
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