 They looked out for each other. They took care of each other. When somebody was injured, they didn't leave them for dead. They brought them to a tree where they could heal, and they probably brought them food and kept watch over them. Look, one of the things that we can and should celebrate about being human is our cooperative nature and our compassion for one another. We can be awful to each other. We all know that. We see plenty of news to know that we can be awful to each other.