Includes bibliographical references (pages 170-193).
Contents
1. An important question, its easy answer, and the consequent paradox -- 2. The aphid-rotifer model -- 3. The strawberry-coral model -- 4. The elm-oyster model -- 5. Other models -- 6. Natural selection in high-fecundity populations: theory -- 7. Natural selection in high-fecundity populations: evidence on viability -- 8. Natural selection in high-fecundity populations: evidence on fertility -- 9. Derived low-fecundity populations -- 10. Patterns of sexuality -- 11. Why are males masculine and females feminine and, occasionally, vice versa? -- 12. Sex as a factor in organic evolution -- 13. Sex as a factor in biotic evolution.