 | Snakes
|
 | copperheads, mating of, 104
|
 | rattlesnakes, estrogen levels in, 9
|
 | rattlesnakes, fluctuating testosterone levels and fighting, 8889
|
 | Soccer
|
 | Women's World Cup, 1999, 5
|
 | World Cup, 1994, Italy-Brazil, 9092, 91
|
 | Social behavior.
|
 | See also Violence.
|
 | adolescent, 205206
|
 | altruism gentle, 172173
|
 | altruism heroic, 174193
|
 | belonging and behaving, 202207, 204
|
|