The Selfish Gene

Explains why living things are the way they are with a single idea, the gene as the unit of selection, and it is the cleanest available account of how altruism and cooperation arise without design. Fifty years on, the gene-centred view is mainstream biology.

The chapter guide

Natural selection preserves replicators that make effective survival machines, so gene-level self-interest can produce organisms whose behaviour includes conflict, care, restraint, and cooperation without conscious design.

1. Introduction to 30th anniversary edition

   Dawkins revisits the title, distinguishes genes as replicators from organisms as vehicles, and clarifies that selfish genes can build cooperative bodies.

2. 1. Why are people?

   The apparent altruism and selfishness of organisms should be explained by natural selection rather than assumed to serve the good of a species.

3. 2. The replicators

   Stable self-copying molecules with longevity, fecundity, and copying fidelity could have emerged from prebiotic chemistry and become the first targets of selection.

4. 3. Immortal coils

   Genes persist as distributed sequences through recombination and generations, while bodies are temporary vehicles assembled from cooperating genes.

5. 4. The gene machine

   Genes influence behaviour indirectly by building bodies and nervous systems that predict, learn, and act in environments too fast for genes themselves to track.

6. 5. Aggression: stability and the selfish machine

   Evolutionarily stable strategies explain why conflict can settle into conditional restraint rather than universal, lethal aggression.

7. 6. Genesmanship

   A gene can spread by helping copies of itself in relatives, making kin-selected altruism compatible with gene-level selection.

8. 7. Family planning

   Natural selection can favour conditional choices about whether and how much to reproduce when resources, competition, and offspring survival vary.

9. 8. Battle of the generations

   Parents and offspring share many genetic interests but not all of them, so care, begging, favouritism, and conflict can evolve together.

10. 9. Battle of the sexes

    Unequal reproductive investment can create conflicts between mating strategies, while ecological conditions determine which strategies can persist.

11. 10. You scratch my back, I’ll ride on yours

    Reciprocal altruism, mutualism, and repeated interaction can make cooperation stable even among non-relatives when cheating is detectable and remembered.

12. 11. Memes: the new replicators

    Ideas and cultural practices may spread through imitation as replicators with their own patterns of longevity, fecundity, and copying fidelity.

13. 12. Nice guys finish first

    Repeated prisoner’s-dilemma games show how conditional cooperation such as Tit for Tat can resist exploitation and outperform persistent defection.

14. 13. The long reach of the gene

    A gene’s phenotypic effects can extend beyond the body into artefacts, other organisms, and environmental changes that alter its replication.

15. Epilogue to 40th anniversary edition

    Later work in genomics and evolutionary theory strengthens the gene’s-eye view while refining how genes, organisms, ancestry, and extended effects are understood.

Scorecard

Universality

4 of 5

Evidence

4 of 5

Reread value

4 of 5