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Credits:
Narrator/Writer: Stephanie Sammann
Writer: Ashleen Knutsen
Editor: Dylan Hennessy (https://www.behance.net/dylanhennessy1)
Editor: Leany Muñoz
Illustrator: Jacek Ambrożewski
Illustrator/Animator: Kirtan Patel (https://kpatart.com/illustrations)
Animator: Mike Ridolfi (https://www.moboxgraphics.com/)
Sound: Graham Haerther (https://haerther.net)
Thumbnail: Simon Buckmaster (  / forgottentowel  )
Producer: Brian McManus (   / realengineering  )

Imagery courtesy of Getty Images

[1] https://www.koko.org
[2] https://gorillafund.org/uncategorized...
[3] https://www.strengthlog.com/deadlift-...
[4] https://archive.org/details/in.ernet....
[5] https://anatomypubs.onlinelibrary.wil...
[6] https://journals.physiology.org/doi/f...
[7] https://gorillafund.org/uncategorized...
[8] https://pubmed.ncbi.nlm.nih.gov/2843616/
[9] https://www.ncbi.nlm.nih.gov/pmc/arti...
[10] https://open.lib.umn.edu/vetphysioapp...
[11] https://pubmed.ncbi.nlm.nih.gov/23754...
[12] https://journals.plos.org/plosbiology...
[13] https://www.eva.mpg.de/fileadmin/cont...
[14] https://gorillafund.org/uncategorized...
[15] http://www.gorillagestures.info/index...
[16] https://www.koko.org/about/programs/p...
[17] https://www.tandfonline.com/doi/pdf/1...
[18] https://www.nationalgeographic.co.uk/...