PSY BEH 100 Lecture Notes - Lecture 4: Neoteny, Cuckold, Concealed Ovulation

• School: UC-Irvine
• Department: Psychology and Social Behavior
• Course: PSY BEH 100
• Professor: Shariff

Document Summary

Applying knowledge (not just humans, but many animals do): All human beings, regardless of race are descended from: Not from chimps - 2. 5mya both bonobo chimp and regular chimp. Not descended from brother, which is the chimp. What happened 2 mya homo habilis ( handy man ) made own tools. Men and women are much more alike than different. The #2 reason (most psychologically immediate reason to have sex): for pleasure. Evo. psych cognitive module gets selected for. Meiosis: two organisms come together to create cells. Big reason: dna recombination creates more possibilities for genetic evolution to occur. For males: having another organism put so much effort into increasing their genetic inclusive fitness is like winning a massive evolutionary lottery recessive deleterious mutations in one genome can be masked by dominant alleles. To motivate them to do that behavior, you need to motivate them in the brain. Consequence: males have to compete to have that opportunity.