CNN CNN Newsroom February 15, 2014 20:45:00
Here they're given a choice to take a treat away from a good or bad puppet. >> who do you want to take a treat from? >> almost 90% of the time, the babies will punish the bad puppet. >> is it possible this is coincidence? they're gravitating to a color of the shirt they like more, or where the placement is? >> good question. we switched the colors of the shirts. so for half the baby, the green shirted puppet is nice. for half it's the orange shirted puppets that's nice and we find over and over again it really doesn't relate to color of the shirt or which puppet's on the left or right. it's wh...