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Credits:
Narrator: Stephanie Sammann
Writer: Angela Wipperman (https://www.angelawipperman.com)
Editor: Dylan Hennessy (https://www.behance.net/dylanhennessy1)
Illustrator: Elfy Chiang (https://www.elfylandstudios.com/)
Illustrator/Animator: Kirtan Patel (https://kpatart.com/illustrations)
Animator: Mike Ridolfi (https://www.moboxgraphics.com/)
Sound: Graham Haerther (https://haerther.net)
Thumbnail: Simon Buckmaster (https://twitter.com/forgottentowel)
Producer: Brian McManus (https://www.youtube.com/c/realengineering)
Imagery courtesy of Getty Images
References:
[1] (https://www.washington.edu/news/2011/10/07/babies-show-sense-of-fairness-altruism-as-early-as-15-months/).
[2] (https://www.nature.com/articles/nature01963)
[3] (https://oxford.universitypressscholarship.com/view/10.1093/acprof:oso/9780199969470.001.0001/acprof-9780199969470 )
[4] (https://onlinelibrary.wiley.com/doi/abs/10.1002/cd.23219977608 )
[5] (https://www.theguardian.com/science/2008/aug/26/animalbehaviour.medicalresearch)
[6] https://www.pnas.org/doi/full/10.1073/pnas.1504454112
[6.5] https://www.sciencedirect.com/science/article/abs/pii/S1090513815001221
[7]
(https://srcd.onlinelibrary.wiley.com/doi/abs/10.1111/j.1467-8624.1993.tb02950.x) [8] (https://theconversation.com/how-monkeys-make-friends-and-influence-each-other-65906)
[9] (https://www.jstor.org/stable/4132870)
[10] (https://www.pnas.org/doi/10.1073/pnas.1701676114)
[11] (https://www.wired.com/2014/11/monkeys-know-theyre/)
[11.5] https://www.sciencedirect.com/science/article/pii/S0960982214014432#mmc2
[12] (https://www.cell.com/cell-reports/pdf/S2211-1247(20)30382-X.pdf).
[13] (https://pubmed.ncbi.nlm.nih.gov/29040907/)
[14] (https://pubmed.ncbi.nlm.nih.gov/25556543/).
[15] (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6372234/).
[16] (https://www.pnas.org/doi/10.1073/pnas.0914616107#sec-11)