Krebs, John, 67—68, 158, 333—34
Marriage, 175—78, 211—12, 218
!Kung San people, 194, 325, 332
between cousins, 282—84
for life, 273
Ladle, Richard, 85
sex outside,
Ladybird beetles, 108
wealth concentration through, 242—43
Lamarck, Jean-Baptiste, 8
Mathematical tasks, 250, 257
Language, 321, 332
Mating systems, 173—207, 211—44
gender differences in, 253, 257
adultery in, 218—44
intelligence and, 309
of apes, 213—17
learning, 313—15
of birds, 217—18
neoteny and, 328—29
ecology and, 187—92
proxy mate-guarding and, 229
violence and, 202—5
Lark buntings, 184
wealth and power and, 194—202, 238—43
Langtry, Lillie, 288
Matrilineal societies, 239
Larson, Gary, 68
Maximin, 200
Learning, 313—16, 329
May, Robert, 84
brain mechanisms for, 321—23
Maynard Smith, John, 29, 37, 38, 40—41,
Lee Kwan Yew, 311
56, 57, 59, 85, 86, 115, 183
Leigh, Egbert, 93—94, 100
Mead, Margaret, 318, 319, 349
Lekking, 141—42, 146, 147, 149, 158, 159,
Meat-eating, 190
167, 195, 222
Medical Research Council (London),
Levi-Strauss, Claude, 284
123
Lesbians, 182
Meiosis, 29—30, 44, 97, 98, 128
pornography and, 271
cost of, 38
Lienhart, R:, 109
Mendel, Gregor, 3 3
