Polygamy, I I5—16, 119, 173—74, 176,
Race, 13
206, 207, 2I2, 218
sexual selection and, 134
adultery and, 232—35
Racism, 8
ecology and, 192
sexism and, 274—75
gender asymmetry and, 178—81
Rape
in history, 197—202
husbands of victims of, 237
among hunter-gatherers, 228—29
in war, 205
among mammals, 221
Ray, Thomas, 69—70
parasitic and, 151
Reciprocity, 77, 194, I96
serial, 183—86
Recombination, 30, 42—45, 47, 49, 62
sexual selection and, 139
generation length and, 71
size and, 341
Recursion, 328—29
spatial skills and, 247, 250—51
Reptiles, immune system of, 70, 74
variations of, 193
Returning-soldier effect, I22—23
wealth and, I94, 242
Roach fish, 157
Polygamy threshold model, 184—86
Romance novels, 270—72
Polymorphism, 72—73, 76, 84
Rome, ancient, 200—203
Polyploidy, 44
I42
I67
Rose, Michael, 95—96
Pope, Alexander, 345
Rotifers, 55—57, 59, 85
Pornography, 266, 270—72
Rousseau, Jean-Jacques, 315
Potts, Wayne, 76
Royal Society (London), 28
Poultry industry, I24
Rozin, Paul, 302
Power, 173—74, 194—202, 206, 244,
Rubens, Peter Paul, 281, 290
