of dolphins, 309—10
biased sex ratios and, 122
gender differences in, 247
child-rearing participation and, 224
hormones and, 254—58, 264
critical-period learning and, 286—87
mechanisms of, 32I—23
facial features and, 295—97
neoteny and, 327—29
fashion and, 30I—4
progression in size of, 310—13
female preference for, 134—46
toolmaking and, 323—25
genetic quality and, 146—49
sexual mentality and, 267—68
Bremermann, Hans, 74, 75, 77
symmetry of, 152—5 3
Brooks, Lisa, 28
thinness and, 287—91
Brown, Don, 205
as universal, 281—82
Buddha, 21
waist-to-hip ratio and, 291—93
Budding, 49
youth and, 293—95
Burley, Nancy, 122, 165, 224, 231
Behaviorism, 319—2I
Burt, Austin, 62, 71, 86
Bell, Graham, 30—31, 48—49, 59, 60, 62,
Buss, David, 267—68, 274, 299
71, 86
Butler, Samuel, 131
Bell, Quentin, 300, 303
Byrne, Richard, 3 3 5, 336
Bellis, Mark,
Benshoof, L:, 232
Caesar, Julius, 200, 336
Bernstein, Harris, 42—45
Caligula, 200, 282
Betzig, Laura, 125, 198—20I, 240
Carotenoids, 155—56, 163
Bilharzia, 75, 80
Carroll, Lewis, I
Birds
Catherine of Aragon, 241
concealed ovulation among, 231
Catholic Church, 202, 230
mating systems of, 217—18, 221—24,
controversies with state, 240—42
