Uploaded March 2025 | Updated September 2026, 1 week ago
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Iberian DNA and the Evolution of Hazel Eyes…
Chapters:
0:00 Intro
0:25 Hazel Eyes
1:07 Iberian Peninsula
2:04 Genetics of Hazel Eyes
4:14 First Person with Hazel Eyes?
6:43 Iberia and Hazel Eyes
8:11 Get Member-Only Videos
8:42 The Genetic History of Iberia
12:55 Main Haplogroups of Iberia Today
14:45 Become a Member
Only around 5% of the world’s population have hazel eyes. Yet a 2009 study found that 55.2% of their Spanish cohort had hazel-green eyes. This eye color is also more common in Portugal than the global average. But why is there such a concentration of hazel eyes in the Iberian peninsula compared to most other parts of the world? And is the evolution of hazel eyes connected to the genetic history of Iberia?
Now there are a two main types of hazel eyes.
Sources:
Díaz YM, Saornil MA, Almaraz A, Muñoz-Moreno MF, García C, Sanz R. Iris Color: Validation of a new Classification and Distribution in a Spanish Population-Based Sample. European Journal of Ophthalmology. 2018;19(4):686-689. doi:10.1177/112067210901900427
Brancato, D.; Coniglio, E.; Bruno, F.; Agostini, V.; Saccone, S.; Federico, C. Forensic DNA Phenotyping: Genes and Genetic Variants for Eye Color Prediction. Genes 2023, 14, 1604. doi.org/10.3390/genes14081604
What Causes Hazel Eyes?
What Color Are Hazel Eyes? | Warby Parker
Mt DNA U5 - eupedia.com/europe/Haplogroup_U5_mtDNA.shtml
Mt DNA U6 - eupedia.com/europe/Haplogroup_U6_mtDNA.shtml
Díaz YM, Saornil MA, Almaraz A, Muñoz-Moreno MF, García C, Sanz R. Iris Color: Validation of a new Classification and Distribution in a Spanish Population-Based Sample. European Journal of Ophthalmology. 2018;19(4):686-689. doi:10.1177/112067210901900427
Iñigo Olalde et al. The genomic history of the Iberian Peninsula over the past 8000 years. Science 363, 1230-1234(2019). DOI:10.1126/science.aav4040
Haplogroup R1b (Y-DNA) - Eupedia
How Rare Are Hazel Eyes? 34 Facts and Superstitions about the Hazel Eye Color | by ZephyrSpark | Medium
Fu, Q., Posth, C., Hajdinjak, M. et al. The genetic history of Ice Age Europe. Nature 534, 200–205 (2016). doi.org/10.1038/nature17993
Creative Commons Imagery:
Laurinemily at English Wikipedia File:Hazel-green eye 2.jpg - Wikimedia Commons Creative Commons Attribution-Share Alike 2.5 Generic license. Deed - Attribution-ShareAlike 2.5 Generic - Creative Commons
Liam Mendes File:Rihanna 5, 2012.jpg - Wikimedia Commons Creative Commons Attribution-Share Alike 2.0 Generic license. Deed - Attribution-ShareAlike 2.0 Generic - Creative Commons
Matteo De Stefano/MUSE File:Homo sapiens - Neolithic - reconstruction - MUSE.jpg - Wikimedia Commons Creative Commons Attribution-Share Alike 3.0 Unported license. Deed - Attribution-ShareAlike 3.0 Unported - Creative Commons
Detlef Gronenborn, Barbara Horejs, Börner, Ober Gronenborn, D., & Horejs, B. (2023). Expansion of farming in western Eurasia, 9600 - 4000 cal BC (update vers. 2023.1). Zenodo. doi.org/10.5281/zenodo.10047818 See repository: DOI 10.5281/zenodo.10047818 This work is licensed under a Creative Commons Attribution 4.0 International License. creativecommons.org/licenses/by/4.0
Wojciech Pędzich, Robert Molyneaux File:Yamnaya phenotype, Reconstruction, male, grave Novooleksiivka; Ukraine.png - Wikimedia Commons Creative Commons Attribution-Share Alike 4.0 International license. Deed - Attribution-ShareAlike 4.0 International - Creative Commons
GaiusCrastinus File:UrnfieldCulture.jpg - Wikimedia Commons Creative Commons Attribution-Share Alike 3.0 Unported license. Deed - Attribution-ShareAlike 3.0 Unported - Creative Commons
User:Rodrigo (es), User:Reedside (en) File:Phoenician trade routes (eng).svg - Wikimedia Commons Creative Commons Attribution-Share Alike 3.0 Unported license. Deed - Attribution-ShareAlike 3.0 Unported - Creative Commons
Iraniangen.blogfa File:J2-Y-DNA-Haplogroup-Map-J2-M172-Map-J2-Haplogrubu-Haritasi-v3.png - Wikimedia Commons Creative Commons Attribution-Share Alike 4.0 International license. Deed - Attribution-ShareAlike 4.0 International - Creative Commons
Maulucioni File:Haplogrupo R1b (ADN-Y).png - Wikimedia Commons Creative Commons Attribution-Share Alike 4.0 International license. Deed - Attribution-ShareAlike 4.0 International - Creative Commons
שמואל יצחק יעקב commons.wikimedia.org/wiki/File:E1b1b.png Creative Commons Attribution-Share Alike 4.0 International license. creativecommons.org/licenses/by-sa/4.0/deed.en
#ancestry #hazeleyes #dna
hazel eyes origins - hazel eyes genetics - genetics of eye color - blue vs brown eyes - Iberian Ancestry
Join This Channel on YouTube to Get Access to Perks: youtube.com/channel/UCCS3M_uNHH2iOJkpGhkO2SA/join
Get Access to Member-Only Videos & More Perks on Patreon - patreon.com/historydecoded
Subscribe to Celtic History Decoded - youtube.com/channel/UCCS3M_uNHH2iOJkpGhkO2SA?sub_confirmation=1
Iberian DNA and the Evolution of Hazel Eyes…
Chapters:
0:00 Intro
0:25 Hazel Eyes
1:07 Iberian Peninsula
2:04 Genetics of Hazel Eyes
4:14 First Person with Hazel Eyes?
6:43 Iberia and Hazel Eyes
8:11 Get Member-Only Videos
8:42 The Genetic History of Iberia
12:55 Main Haplogroups of Iberia Today
14:45 Become a Member
Only around 5% of the world’s population have hazel eyes. Yet a 2009 study found that 55.2% of their Spanish cohort had hazel-green eyes. This eye color is also more common in Portugal than the global average. But why is there such a concentration of hazel eyes in the Iberian peninsula compared to most other parts of the world? And is the evolution of hazel eyes connected to the genetic history of Iberia?
Now there are a two main types of hazel eyes.
Sources:
Díaz YM, Saornil MA, Almaraz A, Muñoz-Moreno MF, García C, Sanz R. Iris Color: Validation of a new Classification and Distribution in a Spanish Population-Based Sample. European Journal of Ophthalmology. 2018;19(4):686-689. doi:10.1177/112067210901900427
Brancato, D.; Coniglio, E.; Bruno, F.; Agostini, V.; Saccone, S.; Federico, C. Forensic DNA Phenotyping: Genes and Genetic Variants for Eye Color Prediction. Genes 2023, 14, 1604. doi.org/10.3390/genes14081604
What Causes Hazel Eyes?
What Color Are Hazel Eyes? | Warby Parker
Mt DNA U5 - eupedia.com/europe/Haplogroup_U5_mtDNA.shtml
Mt DNA U6 - eupedia.com/europe/Haplogroup_U6_mtDNA.shtml
Díaz YM, Saornil MA, Almaraz A, Muñoz-Moreno MF, García C, Sanz R. Iris Color: Validation of a new Classification and Distribution in a Spanish Population-Based Sample. European Journal of Ophthalmology. 2018;19(4):686-689. doi:10.1177/112067210901900427
Iñigo Olalde et al. The genomic history of the Iberian Peninsula over the past 8000 years. Science 363, 1230-1234(2019). DOI:10.1126/science.aav4040
Haplogroup R1b (Y-DNA) - Eupedia
How Rare Are Hazel Eyes? 34 Facts and Superstitions about the Hazel Eye Color | by ZephyrSpark | Medium
Fu, Q., Posth, C., Hajdinjak, M. et al. The genetic history of Ice Age Europe. Nature 534, 200–205 (2016). doi.org/10.1038/nature17993
Creative Commons Imagery:
Laurinemily at English Wikipedia File:Hazel-green eye 2.jpg - Wikimedia Commons Creative Commons Attribution-Share Alike 2.5 Generic license. Deed - Attribution-ShareAlike 2.5 Generic - Creative Commons
Liam Mendes File:Rihanna 5, 2012.jpg - Wikimedia Commons Creative Commons Attribution-Share Alike 2.0 Generic license. Deed - Attribution-ShareAlike 2.0 Generic - Creative Commons
Matteo De Stefano/MUSE File:Homo sapiens - Neolithic - reconstruction - MUSE.jpg - Wikimedia Commons Creative Commons Attribution-Share Alike 3.0 Unported license. Deed - Attribution-ShareAlike 3.0 Unported - Creative Commons
Detlef Gronenborn, Barbara Horejs, Börner, Ober Gronenborn, D., & Horejs, B. (2023). Expansion of farming in western Eurasia, 9600 - 4000 cal BC (update vers. 2023.1). Zenodo. doi.org/10.5281/zenodo.10047818 See repository: DOI 10.5281/zenodo.10047818 This work is licensed under a Creative Commons Attribution 4.0 International License. creativecommons.org/licenses/by/4.0
Wojciech Pędzich, Robert Molyneaux File:Yamnaya phenotype, Reconstruction, male, grave Novooleksiivka; Ukraine.png - Wikimedia Commons Creative Commons Attribution-Share Alike 4.0 International license. Deed - Attribution-ShareAlike 4.0 International - Creative Commons
GaiusCrastinus File:UrnfieldCulture.jpg - Wikimedia Commons Creative Commons Attribution-Share Alike 3.0 Unported license. Deed - Attribution-ShareAlike 3.0 Unported - Creative Commons
User:Rodrigo (es), User:Reedside (en) File:Phoenician trade routes (eng).svg - Wikimedia Commons Creative Commons Attribution-Share Alike 3.0 Unported license. Deed - Attribution-ShareAlike 3.0 Unported - Creative Commons
Iraniangen.blogfa File:J2-Y-DNA-Haplogroup-Map-J2-M172-Map-J2-Haplogrubu-Haritasi-v3.png - Wikimedia Commons Creative Commons Attribution-Share Alike 4.0 International license. Deed - Attribution-ShareAlike 4.0 International - Creative Commons
Maulucioni File:Haplogrupo R1b (ADN-Y).png - Wikimedia Commons Creative Commons Attribution-Share Alike 4.0 International license. Deed - Attribution-ShareAlike 4.0 International - Creative Commons
שמואל יצחק יעקב commons.wikimedia.org/wiki/File:E1b1b.png Creative Commons Attribution-Share Alike 4.0 International license. creativecommons.org/licenses/by-sa/4.0/deed.en
#ancestry #hazeleyes #dna
hazel eyes origins - hazel eyes genetics - genetics of eye color - blue vs brown eyes - Iberian Ancestry
