Patterns of Sexual Behavior

adolescence adult male Alorese apes appears attempt Azande baboons boys breasts castration cent Chagga Chapter chimpanzees climax clitoris coital coitus copulation copulatory cultural cycle dogs ejaculation engage erection erotic estrus evidence evolutionary female's feminine fertile fish form of sexual frequently genitalia genitals girls havior heterosexual homosexual homosexual behavior Hopi human females human sexual human sexual behavior human societies Ifugao individuals indulge infrahuman intromission involved Kinsey labia Lepcha less liaisons lower mammals macaque male and female male's mammalian mammals marriage masculine masturbation mateships mating mature menstruation monkeys monogamous mount normal occur orgasm ovaries pattern penis period physiological Polygyny permitted Population practice pregnancy primates puberty rare rats receptive female relatively reproductive result self-stimulation sex play sexual activity sexual arousal sexual behavior sexual excitement sexual intercourse sexual organs sexual relations sexual responsiveness Siriono social species stimulation Tikopia tion Trobrianders Trukese usually vagina vulva Wogeo woman women Yerkes young Zuckerman