BIOL 350 Lecture Notes - Lecture 8: Birth Weight, Coevolution, Ingroups And Outgroups
2 Nov 2016
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Every one of our ancestors managed not just to live for a while, but to convince at least one sexual partner to have enough sex to produce offspring. Those proto-humans that did not attract sexual interest did not become our ancestors, no matter how good they were at surviving miller (2000) Evolutionary paradox is this isn"t the result of sex. Sex also recreation in humans, enjoyable because it serves to propel genes and get parenthood and family. Male have ancestral opportunity to be more prolific grandchildren production (propelled more genes to the future) Wealthy, polygamy society, favour sons (allows them to buy more wives). In some societies, the boy preferring culture has spread from elites to the society at large. China: by around 2020, about 30 million men (1:10) aged between 20-45 yrs equivalent to the entire population of canada will be unable to find a wife. China to end one child policy and allow two.
