PSYC 3P34 Lecture Notes - Lecture 7: Polygynandry, Parental Investment, Pair Bond
13 Jan 2016
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Sommer (1993): were our ancient homo sapien ancestors monogamous or polygamous: found that he could predict the mating arrangement of a. Within the species, were males or females bigger? primate group based on 4 questions (when m larger than f then more likely to be polygamous, monogamy associated with less sexual dimorphism) How much did the males" testes weigh? (extent to which m have larger testes compared to body size, more likely to be polygamous) Did the females have sexual swelling? (more. Advertising of fertility , more likely to be polygamous) How long did intercourse last? (longer, more likely to be monogamous: concludes humans are likely monogamous. Examples: gorillas have biggest sex dimorphism and have more polygyny; bonobos have smaller sexual dimorphism and have more polygynandry; gibbons are very similar in body size and form monogamous strategies. While polygyny is acceptable in most noted societies, it is. Stewart-williams & thomas (2013): pair-bonding, mutual mate choice, and primates (17, 18, 19)
