Next time you snatch a toy from your baby brother's or sister's hand be careful. They can tell the difference between good and bad!

In this amazing experiment, scientists showed two videos to six-month-old babies; one with a "mean" square shape and the other with a "friendly" triangle shape. When asked to choose between the two, all the babies went for the friendly triangle, leading scientists to believe that babies at a very young age seem to realize the difference between good and bad. Quite fascinating!

Click and enjoy: