Based on this YouTube video's total view count of 30.6M views and industry-standard rates, the estimated total earning is $21.4K - $61.2K through ad revenue. Historical data is not yet available to calculate daily, weekly, or monthly averages.

Explore Why Do We Kiss? with 30,607,944 views, 470,598 likes, and 40,717 comments. Experience the impact of this video content that has captured audience attention.

The scientific study of kissing is "philematology" Follow Michael Stevens: http://www.twitter.com/tweetsauce Sources and links to learn more: Kissing facts: http://www.psychologytoday.com/blog/let-their-words-do-the-talking/201212/odd-facts-about-kissing Longest kiss: http://www.guinnessworldrecords.com/records-1/longest-kiss/ general info on kissing: http://anthropology.net/2007/03/09/why-do-we-kiss/ http://intro2psych.wordpress.com/2009/05/13/the-evolution-of-a-kiss/ http://en.wikipedia.org/wiki/Kiss birds kissing ("billing"): http://en.wikipedia.org/wiki/Beak#Billing http://en.wikipedia.org/wiki/Kiss kiss researcher interview [video]: https://www.youtube.com/watch?v=mun5nXXy6II pac man's shape: http://pacmanmuseum.com/history/Toru-Iwatani.php premastication: http://en.wikipedia.org/wiki/Premastication http://en.wikipedia.org/wiki/Courtship_feeding Alicia Silverstone premastication video: http://youtu.be/c6tEKLT5G2M history of baby food: http://www.foodtimeline.org/foodbaby.html old baby food instructions: http://digital.lib.msu.edu/projects/cookbooks/display.cfm?ID=ldnw&PageNum=437 infant vision: http://www.aoa.org/x9420.xml Pareidolia: http://en.wikipedia.org/wiki/Pareidolia Being watched: http://www.psychologytoday.com/blog/the-narcissus-in-all-us/201102/how-you-know-eyes-are-watching-you Scopophobia: http://en.wikipedia.org/wiki/Scopophobia Gaze papers: http://www.sciencedirect.com/science/article/pii/S0960982213003321 http://www.ncbi.nlm.nih.gov/pubmed/11322803 http://www.ncbi.nlm.nih.gov/pubmed/10827445 psychic staring effect: http://en.wikipedia.org/wiki/Psychic_staring_effect Harry Harlow [video]: http://www.youtube.com/watch?v=OrNBEhzjg8I Harry Harlow links: http://en.wikipedia.org/wiki/Harry_Harlow http://en.wikipedia.org/wiki/Pit_of_despair http://bit.ly/16kj1Sw Hess ducklings: http://www.muskingum.edu/~psych/psycweb/history/hess.htm imprinting: http://www.encyclopedia.com/topic/imprinting.aspx Attachment links: (TEXT BOOK scans) http://bit.ly/16kj1Sw http://psychology4a.com/attach%203.htm http://www.ibam.com/pubs/jbam/articles/vol12/no2/3%20-%20Baker%20and%20Carson.pdf description of puppy experiment: http://bit.ly/13K6XWr puppy experiment in Guy Murchie's book: http://bit.ly/11U5ih7 acceptance of uncertainty: http://www.clearlycultural.com/geert-hofstede-cultural-dimensions/uncertainty-avoidance-index/ http://en.wikipedia.org/wiki/Hofstede's_cultural_dimensions_theory ***************** music by: http://www.youtube.com/JakeChudnow Vsauce on facebook: http://www.Facebook.com/VsauceGaming Euronews Knowledge channel: http://bit.ly/10JFu6L

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