Why we’re exactly the same, most of the time

Here’s a video of Robert Sapolsky, who has excellent hair. He gives an excellent overview of what is unique and what is different about humanity versus the rest of the animal kingdom. You’ll learn a lot about primate culture. It really is worth the watch (though start 5 minutes in; I can’t seem to embed it with that set). Here’s some other, possibly unrelated, things I learned:

  • Menstruation cycle matching – the dominant, most social female leads in humans
  • Chess grandmasters burns ~6000-7000 calories a day thinking
  • Vampire bats live in large social groups and search for cows blood in order to feed their communal offspring. If you prevent one from feeding other babies but make the bat look like it has blood, the other bats won’t feed her babies…evidence of tit for tat behavior
  • Highest entropy tasks release the most dopamine…tasks with the same amount of entropy (ie, 25% vs. 75% probability decision tasks) lead to release of the same amount of dopamine (I should find this citation…)