The Ancestor Paradox

Sign up for a 14-day free trial and enjoy all the amazing features MyHeritage has to offer: https://bit.ly/MinuteEarth_MH There are several ways to think about ancestry, and all of them suggest you have fewer unique ancestors than you might think. LEARN MORE ************** To learn more about this topic, start your googling with these keywords: - Genealogy: a line of descent traced continuously from an ancestor. - Genetic ancestor: a person from whom an individual is biologically descended - Genetic ancestry: the genetic origin of a person's population, and the specific lines of descent through which they inherited DNA from their ancestors. - Pedigree: the recorded ancestry, especially upper-class ancestry, of a person or family. - Pedigree collapse: a term used in genealogy to describe when the number of distinct ancestors in a family tree is smaller than it would be otherwise. SUPPORT MINUTEEARTH ************************** If you like what we do, you can help us!: - Become our patron: https://patreon.com/MinuteEarth - Our merch: http://dftba.com/minuteearth - Our book: https://minuteearth.com/books - Sign up to our newsletter: http://news.minuteearth.com - Share this video with your friends and family - Leave us a comment (we read them!) CREDITS ********* Cameron Duke | Script Writer, Narrator and Director Arcadi Garcia i Rius | Storyboard Artist Sarah Berman | Illustration, Video Editing and Animation Nathaniel Schroeder | Music MinuteEarth is produced by Neptune Studios LLC https://neptunestudios.info OUR STAFF ************ Lizah van der Aart • Sarah Berman • Cameron Duke Arcadi Garcia i Rius • David Goldenberg • Melissa Hayes Alex Reich • Henry Reich • Peter Reich Ever Salazar • Leonardo Souza • Kate Yoshida OUR LINKS ************ Youtube | https://youtube.com/MinuteEarth TikTok | https://tiktok.com/@minuteearth Twitter | https://twitter.com/MinuteEarth Instagram | https://instagram.com/minute_earth Facebook | https://facebook.com/Minuteearth Website | https://minuteearth.com Apple Podcasts| https://podcasts.apple.com/us/podcast/minuteearth/id649211176 REFERENCES ************** Coop, Graham. “How Many Genetic Ancestors Do I Have?” Gcbias, 11 Nov. 2013, gcbias.org/2013/11/11/how-does-your-number-of-genetic-ancestors-grow-back-over-time/ “How Many People Have Ever Lived on Earth? | Corrections Environmental Scan.” info.nicic.gov/ces/global/population-demographics/how-many-people-have-ever-lived-earth. Lachance, Joseph. “Inbreeding, Pedigree Size, and the Most Recent Common Ancestor of Humanity.” Journal of Theoretical Biology, vol. 261, no. 2, Nov. 2009, pp. 238–247, https://doi.org/10.1016/j.jtbi.2009.08.006 Pattison, J.E. “New Method of Estimating Inbreeding in Large Semi-Isolated Populations with Application to Historic Britain.” HOMO, vol. 52, no. 2, 2001, pp. 117–134, https://doi.org/10.1078/0018-442x-00024 Reich, David. Who We Are and How We Got Here : Ancient DNA and the New Science of the Human Past. New York, Pantheon Books, 2018. Rohde, Douglas L. T., et al. “Modelling the Recent Common Ancestry of All Living Humans.” Nature, vol. 431, no. 7008, 1 Sept. 2004, pp. 562–566, https://doi.org/10.1038/nature02842 Schiffels, Stephan, and Richard Durbin. “Inferring Human Population Size and Separation History from Multiple Genome Sequences.” Nature Genetics, vol. 46, no. 8, 22 June 2014, pp. 919–925, https://doi.org/10.1038/ng.3015 Wikipedia Contributors. “Pedigree Collapse.” Wikipedia, Wikimedia Foundation, 11 Jan. 2024, en.wikipedia.org/wiki/Pedigree_collapse