PSYCH 3F03 Lecture Notes - Lecture 1: Inclusive Fitness, Human Behaviour, Sexual Selection
8 Sep 2016
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Psych 3f03 sep. 6 lecture 1 introduction and overview. Evolution and human behaviour is an interdisciplinary field. Natural selection: differential reproductive success of different phenotypes: it"s not about the survival of the fittest, it"s about promoting copies of our genes no matter what it takes. Sexual selection: natural selection that acts differently on different sexes. Phenotype: individual characteristics resulting from environmental interaction of an organisms genotype (e. g. what is expressed: e. g. Genotype: the genetic constitution of an organism: e. g. Fitness: the number of offspring produced or proportion of genes passed to subsequent generations. Darwinian or direct fitness: fitness obtained through direct descent. A lot of times we think what is natural or what science is telling us is good. Science does not judge or justify behaviour: science tells us what is, it describes the world. Just because bad things occur in the natural world does not justify them. Just because something is natural doesn"t make it right or wrong: ex.
