https://asa.scitation.org/doi/abs/10.1121/1.4784549
ماهی هایی که خود را در آیینه می شناسند
https://www.biorxiv.org/content/10.1101/397067v1.full.pdf
استفاده کلاغ ها از سنگ برای رسید به غذا
https://www.cell.com/action/showPdf?pii=S0960-9822%2809%2901455-9
http://www.bioone.org/doi/full/10.2993/0278-0771-37.4.700
https://www.nationalgeographic.com/news/2011/12/111202-wasps-people-faces-recognition-insects-science-animals/
https://www.nature.com/articles/s41467-020-14695-1.pdf
https://en.wikipedia.org/wiki/Tidal_locking
https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2019PA003723
تصاویر استفاده شده دز این اپیزود:
https://en.wikipedia.org/wiki/Kea#/media/File:Kea.jpg
https://www.nature.com/articles/s41467-020-14695-1.pdf
موسیقی پس زمینه:
URL: http://freemusicarchive.org/music/Augustus_Bro__Gallery_Six/EP_1079/Led_by_the_dress_colored_in_red
Comments: http://freemusicarchive.org/
Curators: Music for Video, elementperspective
Copyright: Attribution-NonCommercial-ShareAlike: http://creativecommons.org/licenses/by-nc-sa/3.0/