difference between good and ba? researchers studied the minds of babies and what they discovered is eye-opening. here's anderson keep. >> reporter: mees megan, 6 months old. >> look how pretty you are. >> reporter: so is connor. hazel is 11 months, and lyle, just 3 months old. these babies are lep helping to answer one of life's biggest questions. are we born knowing right from wrong. most people think of babies at blank slates. your experiments they that's not true. not that they have to be taught wrong from right? >> at very early ages there is a lot going on there. >> you want to put that in there? ah! wow. look at that. good job. >> reporter: this is the infant cognition center at yale university. otherwise known at the baby lab. based on over eight years of studies, researchers here