Why Europeans and Asians Evolved So Differently

Two strangers sit across from each other on a flight. One has pale skin and light eyes. The other has straight black hair and a fold at the corner of each eye. Their ancestors were probably neighbors 50,000 years ago. So why do Europeans and East Asians look so different today? In this video, we follow the ancient DNA to find out. You'll learn how evolution solved the same skin-lightening problem twice with completely different mutations, why Cheddar Man had dark skin and blue eyes, how Neanderthals and Denisovans left their mark, and why the ability to drink milk spread so recently. We also cover the EDAR gene behind thicker hair, the single-letter change that decides your earwax type, the Tibetan altitude gene borrowed from an extinct species, and what science still can't explain, like the epicanthic fold. And we cover the most important part: why these visible differences are real but tiny, and why human variation is a gradient, not a set of boxes. If you enjoy science and human history explained honestly, subscribe so you don't miss the next one. SOURCES Norton et al. 2007, convergent evolution of light skin in Europeans and East Asians: https://doi.org/10.1093/molbev/msl193 Brace et al. 2019, Cheddar Man and Neolithic Britain: https://doi.org/10.1038/s41559-019-0871-9 Olalde et al. 2018, the Beaker phenomenon: https://doi.org/10.1038/nature25738 Fu et al. 2015, Romanian skull with recent Neanderthal ancestor: https://doi.org/10.1038/nature14558 Kamberov et al. 2013, EDAR variant in mice: https://doi.org/10.1016/j.cell.2013.01.003 Yoshiura et al. 2006, ABCC11 and earwax: https://doi.org/10.1038/ng1733 Huerta-Sánchez et al. 2014, Denisovan EPAS1 in Tibetans: https://doi.org/10.1038/nature13408 Kenny et al. 2012, blond hair in the Solomon Islands (TYRP1): https://doi.org/10.1126/science.1217697 Manica et al. 2007, skull variation and population history: https://doi.org/10.1038/nature06174 Zaidi et al. 2017, nose shape and climate: https://doi.org/10.1371/journal.pgen.1006616 Natural History Museum, Cheddar Man: https://www.nhm.ac.uk/our-science/our-work/origins-evolution-and-futures/human-evolution.html #HumanEvolution #AncientDNA #Genetics #Evolution #Anthropology #Neanderthal #HumanMigration #Science #DNA #EvolutionaryBiology #HumanHistory #Denisovans #OutOfAfrica #ScienceExplained #Documentary #Biology #Archaeology #NaturalSelection