COGSCI 111 Feb1Lecture - Wild Chimpanzee Social Life Group...

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Wild Chimpanzee Social Life Group structure: groups can join or split Adult bonding: by both sexes, but relative amount varies, and bonobos have M-F bonds Sex for non-reproductive purposes: bonobos Inter-group relations: much less nasty in bonobos Dominant sex differs in the two species “Planned” murder: common chimps Food as social currency
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Comparative genomics of the brain Searching for your inner chimp Searching for the genetic and neural basis of human-ness
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Mary-Claire King and Alan Wilson (1975): we share 98% of our structural genes with the common chimpanzee How do we account for the difference between their brains/minds and ours? a. That 2% makes a big difference (genome is a recipe, not a blueprint) b. The regulatory genes that control gene expression are really important c. Gene duplication makes a big difference What has been learned more recently through the human and chimp genome projects?
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Recent Findings 1. 98.7% of the DNA sequence is the same. 2. There are more gene duplications in humans, and some are genes
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COGSCI 111 Feb1Lecture - Wild Chimpanzee Social Life Group...

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