Learn more about your personal DNA story by going to 23andMe.com/okay Don't miss our next video! SUBSCRIBE! ►► bit.ly/iotbs_sub ↓↓↓ More info and sources below ↓↓↓ Humans are special, and we got that way thanks to evolution and natural selection. The proof is right there in our bodies! From anatomy to genes, here are some stories of how you got to be the way you are. References: Miller, Kenneth R. "The Human Instinct: How We Evolved to Have Reason, Consciousness, and Free Will" Simon & Schuster (2018) amzn.to/2JD3d3c Booth, H. A. F., & Holland, P. W. (2004). Eleven daughters of NANOG. Genomics, 84(2), 229-238. Brawand, D., Wahli, W., & Kaessmann, H. (2008). Loss of egg yolk genes in mammals and the origin of lactation and placentation. PLoS biology, 6(3), e63. Freyer, C., & Renfree, M. B. (2009). The mammalian yolk sac placenta. Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, 312(6), 545-554. Yunis, J. J., & Prakash, O. (1982). The origin of man: a chromosomal pictorial legacy. Science, 215(4539), 1525-1530. ----------- FOLLOW US: Twitter: @DrJoeHanson @okaytobesmart Instagram: @DrJoeHanson Merch: store.dftba.com/collections/its-okay-to-be-smart Facebook: www.facebook.com/itsokaytobesmart SEND US STUFF: It’s Okay To Be Smart PO Box 303356 Austin, TX 78703 USA BOOKS WE’VE FEATURED: smart-books.tumblr.com/ ----------- It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D. Director: Joe Nicolosi Writer: Joe Hanson, Ph.D. Creative Director: David Schulte Editor/animator: Derek Borsheim Producers: Stephanie Noone and Amanda Fox Produced by PBS Digital Studios Music via APM Stock images from Shutterstock www.shutterstock.com

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