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Evolutionary Psychology (m11 p141-145) The Belyaev Domesticated Fox Experiment From Trut, 1999:As Lyudmila Trut says in her 1999 American Scientist article.

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Presentation on theme: "Evolutionary Psychology (m11 p141-145) The Belyaev Domesticated Fox Experiment From Trut, 1999:As Lyudmila Trut says in her 1999 American Scientist article."— Presentation transcript:

1 Evolutionary Psychology (m11 p141-145) The Belyaev Domesticated Fox Experiment From Trut, 1999:As Lyudmila Trut says in her 1999 American Scientist article [1], The least domesticated foxes, those that flee from experimenters or bite when stroked or handled, are assigned to Class III. Foxes in Class II let themselves be petted and handled but show no emotionally friendly response to experimenters. Foxes in Class I are friendly toward experimenters, wagging their tails and whining. In the sixth generation bred for tameness we had to add an even higher- scoring category. Members of Class IE, the "domesticated elite," are eager to establish human contact, whimpering to attract attention nt differs from natural selection which favors reproand sniffing and licking experimenters like dogs. They start displaying this kind of behavior before they are one month old. By the tenth generation, 18 percent of fox pups were elite; by the 20th, the figure had reached 35 percent. Today elite foxes make up 70 to 80 percent of our experimentally selected population.

2 Evolutionary Psychology: Sexuality Lippa, 2008: Men more than women everywhere agree: 'I have a strong sex drive', and 'It doesn't take much to get me sexually excited' (m 144 c 142). Schmitt, 2007: In surveys, gay men (like straight men) report more interest in uncommitted sex, more responsiveness to visual sexual stimuli, and more concern with their partner's physical attractiveness than do lesbian women(m 144, c142). Men have a lower threshold for perceiving warm responses as a sexual come-on. (Johnson et al., 1991). This is an example of misattribution error (m 145 c 143) What do heterosexual men and women find attractive in a mate? Men need a six-pack; women an hour-glass figure. Nature selects bodies and behaviours that will send one's genes into the future.

3 Our Genetic Legacy No more than 5% of the genetic differences among humans arise from population group differences. Some 95% of genetic variation exists within populations. (Rosenberg et al., 2002 c. p140) If after a world wide catastrophe only Iceland or Kenyans survived (99% population gone = 73 million left) the human species would suffer only a 'trivial reduction' in its genetic diversity. (Lewontin, 1982 c. p140). Natural selection has given us 'a universal moral grammar'. (Hauser, 2009 c p141). Our natural dispositions are mismatched with today's junk-food environment and today's threats, such as climate change. (Collarelli & Dettman, 2003 c p141).

4 Evolution & Sexuality Kenrick et al., 2009: Men are attracted to women whose ages would be associated with peak fertility (the middle twenties). This pattern is consistent across North and South America, Africa, India, and the Phillipines. (m 145, c 143) Singh, 1995: Women are attracted to men who seem mature, dominant, bold, and affluent.(m 145, c 143) Roney et al., 2006: Women skillfully discerned which men most liked looking at baby pictures, and they rated those men higher as potential long-term mates. ( m 145 c143) Buss, 2009: From an evolutionary perspective, such attributes connote a man's capacity to support and protect a family. (m 145 c143)


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