Children who ostracize or gossip about other kids have likely picked up that behavior from their peers, families or teachers, according to new study findings. In a study of identical and fraternal 6-year-old twins, a group of Quebec researchers found that approximately 60 percent of children's physical aggression - biting, hitting or slapping another child - is inherited. In contrast, only 20 percent of social aggression - more subtle forms of cruelty, such as gossiping, or excluding another child - is fueled by a child's genetic makeup. This suggests that most children who are socially cruel to other children have likely learned it from their environment, meaning the people around them, study author Dr. Mara Brendgen of the University of Quebec at Montreal told Reuters Health. Brendgen added that the study also showed that physical aggression tends to lead to social aggression, but not the other way around, which helps explain why physical aggression often diminishes with age, while social aggression increases. Typically, children are more likely to be punished for physically attacking another child than for socially attacking them, the researcher explained, so as children age, they may transition toward tactics that they are more likely to get away with. Read more here. So, according to these findings, those who bully and/or gossip have learned this behavior from friends and family. Do you think these characteristics are from nature...or are they nurtured? What did you learned about gossip and cruelty in your childhood?