Matt Ridley

267

Ryan, Michael, 161, 162, 164, 166

inheritance patterns and, 238—43

Predators, 66, 73

Premature death, causes of, 65

San tribe, 10

Primates, set Apes; Monkeys

Scale insects, 80, 97

Primogeniture, 240—42

Scheherazade effect, 3 39—40

Progesterone, 255

Sea horses, 180

Progress

Seals, 18—19

evolution and,

Searcy, William, 165

27, 31, 62—63, 65

relativity of, 18—19

Seduction, 154, 158, 161, 178

Promiscuity, 266

adultery and, 218

homosexual, 181—83

Segregation distorter, 98

::: 404 :::

I NDEX

Segregation theory of sex, 47

Socioecology, 187, 190, 192

Seid, Roberta, 287

Sociology, 318, 319

Self-Made Man and His Undoing (Kingdon), Sparrows, 234—35

252

Spatial skills, 247, 250—5I, 257

Sex chromosomes, 99, 110—14, I21—23,

Species, survival of, 32—3 3

264, 279, 280

Sperm competition theory, 213—26, 230,

Sex and Evolution (Williams), 40

231

Sexism, 248, 258—62

Status, see Dominance

racism and, 274—75

Strawberries, 58

Sex ratios, biased, 108, 115—25

Suetonius, 200

Sexual selection,

20—21, 131—69, 280

Sumeria, 199

14,

beauty and, 294—95, 297, 304—5

Sunquist, Mel, 116

competition and, I 3 3, 136