BBC - Earth - There is something weird about this gorilla's eyes
http://www.bbc.com/earth/story/20150808-gorillas-with-human-eyesCooperative eye hypothesis - Wikipedia
https://en.wikipedia.org/wiki/Cooperative_eye_hypothesisGorilla cliques mirror human relationships in 1 very relatable way
https://www.inverse.com/science/gorilla-social-network-studyWhy Chimps and Gorillas Form Rainforest Friendships - The New York Times
https://www.nytimes.com/2022/10/11/science/gorillas-chimps-friends.html