That is, just over a third of children in two studies (in the United States and Finland) who demonstrated high aggressive behavior levels at around eight years of age also displayed these levels as adults. Interestingly, the same is true for those children who displayed very low levels of aggression. Not surprisingly another strong correlation with childhood and adult aggression was the aggressiveness of the adults parenting the children. This pattern, where context, learning, and childhood experience and environments are related to the adult expression of aggression, is characteristic of many cultures around the planet