Study suggests environmental factors had a role in the evolution of human tolerance – Phys.org

Environmental pressures may have led humans to become more tolerant and friendly towards each other as the need to share food and raw materials became mutually beneficial, a new study suggests.
This behaviour was not an inevitable natural progression, but subject to ecological pressures, the University of York study concludes.
Humans have a remarkable capacity to care about people well outside their own kin or local group. Whilst most other animals tend to be defensive towards those in other groups…

Click here to view the original article.