Slacker Homeboy Chimps

For those of you who have sons over 18 who have moved back in with you -- it turns out that the problem is deeper than you ever thought. According to the March 2008 Smithsonian Magazine, "When times are tough, male chimpanzees go home, according to a study of more than 30 years' worth of records from Tanzania's Gombe national Park. Males abandon social groups when food is scarce and return to territories where they were reared by their mothers" (12). Isn't it nice to know that your slacker son's behavior is explainable with evolutionary psychology? That still doesn't explain how to get him out of the house, though, now does it?