Ch8 Evolutionary Perspectives on Personality

Ch8 Evolutionary Perspectives on Personality - Ch8...

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Ch8 Evolutionary Perspectives on Personality pt.1 Natural Selection Human nature – a collection of evolved mechanisms that helped our ancestors accomplish these goals Survival of the fittest “fit” as in best…. . to survive and reproduce Animals replicate themselves Darwin’s breakthrough Theory of how adaptations are created and changes take place over time: natural selection Adaptations: inherited solutions to survival/reproductive problems posed by nature A lot of variety within a species Some survive and reproduce, some don’t Some traits better enable an organism to survive and reproduce (> more offspring) Offspring inherit traits that led to success Traits that help survival/reproduction become more common in the gene pool (“selected for”) Traits that hinder reproduction slowly disappear (“selected against”) Sexual Selection - Some traits that evolved seem to threaten survival - Peacocks – colorful tails – hard to escape from predators – used for sexual selection - Solution: evolution by sexual selection o Traits evolved because they contribute to mating success. -
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This note was uploaded on 04/05/2012 for the course PPE 3003 taught by Professor Madsen during the Summer '06 term at FSU.

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Ch8 Evolutionary Perspectives on Personality - Ch8...

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