Angela Duckworth: What causes us to place so much emphasis on relationships with people we didn't choose to be with but happen to know by chance. Steven Dubner: The argument in evolutionary biology circles has been whether we favor our families because of the selfish gene hypothesis. He says from an evolutionary perspective, somehow survival is promoted by a family structure.
If you’re frustrated with your family, should you cut ties with them? Who’s more likely to break with relatives over politics, liberals or conservatives? And what would it take for Stephen to buy a baby elephant?