lecture8

lecture8 - Life Science 15: Concepts and Issues Lecture 8:...

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Life Science 15: Concepts and Issues Lecture 8: Friend and foe are fluid categories 2/2/12 I. evidence of kin selection II. cooperation is rare in the animal world III. certain conditions are conducive to altruism among non-kin IV. reciprocal altruism in your life Predictions of kin selection: 1. MURDER: more non-relatives killed than relatives among cohabitants 2. INFANTICIDE: children in step-families are injured or killed more frequently than those living with their biological parents a. Step parents are 100x more likely to kill step-children 3. BEQUESTS: individuals will leave more of their estate to close kin than distant kin a. Spouses, children are most likely Among unrelated individuals, selfishness is the rule and kindness is the exception. - bicycle sharing programs o stolen and broken, always Kindness: 1. shared genes 2. reciprocity Animal friendship? - none - cooperation among non-kin in animal species is rare, almost nonexistent - only example: Vampire Bats o suck blood for food
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lecture8 - Life Science 15: Concepts and Issues Lecture 8:...

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