91色情片

Deborah Blum鈥檚 Sex on the Brain is a lively survey of the biological
differences between men and women鈥攆rom genes to hormones to sexual
strategies. The implications for the way both sexes live their lives are not
swept under the carpet, nor are they obscured by hand-waving cultural
relativism. Instead, they receive thoughtful and thought-provoking
consideration. Published by Penguin, $24.95, ISBN 0670868884.