The sex contract the evolution of human behavior by helen e fisher new york william morrow 1982 on becoming human by nancy m tanner new york cam bridge university press 1981 the woman that never evolved by sarah b hrdy cam bridge harvard university press 1981 man the promising primate the conditions of human evolution by . Excelent anthropological point of view on evolution of human behaviour the sex contract evolved between primitive men and women more than 4 millions years ago it was a contract cemented by regular sex and designed to help the female raise her young but bonding did much more than help the young survive. The sex contract the evolution of human behavior helen e fisher w morrow 1982 human evolution 253 pages 0 reviews she has conducted extensive research and written books on the evolution and future of human sex love marriage gender differences in the brain and how your personality type shapes who you are and who you love. The sex contract the evolution of human behavior by h e fisher new york william morrow and company 1982 253 pp figures appendices bibliography index 13