Linking pages
- Mysterious new behaviour found in our closest living relatives https://theconversation.com/mysterious-chimpanzee-behaviour-may-be-evidence-of-sacred-rituals-55512 25 comments
- Ritualized behavior? Chimps all throw rocks at the same tree | Ars Technica http://arstechnica.com/science/2016/03/ritualized-behavior-chimps-all-throw-rocks-at-the-same-tree/ 5 comments