Patterns of Sex: The Mating Urge and Our Sexual Future |
Contents
A PURPOSE FOR SEX? | 13 |
THE ANIMALS WAY | 25 |
THE HUMAN SEX MACHINE | 41 |
Copyright | |
9 other sections not shown
Common terms and phrases
abnormal adolescence adult aggressive animals associated Barr bodies become biological birds body breasts breed buggery cause cells certainly child chromosomes clitoris codes of criteria coprophilia copulation courtship cycle desire effect eggs embryo evolutionary evolved example experience fact feel female feminine fertilization flatworm freemartin frotteurism gender genes genetic genitals girls happens hermaphrodite heterosexual homosexuality hormone human individual innate intercourse intersexuality involved kind Klinefelter's Syndrome known learned lives look lust murder male mammals mankind masculine masturbation mate mature means mechanism menopause menstrual microbes mother nature no-one normal occur offspring organs orgasm ovary ovum pair parents parthenogenesis partner pattern penis perhaps person phenomenon physical pregnancy produce reproduction result Rhesus phenotype rotifers seems sense sex education sex organs sex-change sexual activity society species sperm stimulation structure Syndrome tissues trans-sexual transvestism transvestite vagina virgin birth whilst woman women X-chromosome young