A basic human race survival trait is the formation of groups to work together to solve problems. This ultimately led to society in all of it's myriad forms. Without the society of our fellow humans, we wouldn't be much more than animals. Scientists believe that the ability to communicate is when humans become significantly different than animals. IOW a six month old human baby is not much different than a chimpanzee infant, brain wise. Communication with each other is when we begin to think in abstractions, which is what led to our survival and domination as a species.