Many DNA experts claim the fact is that anyone with blue eyes is that you all, apparently, share an ancestor. For those wondering how this is possible, they will first need to look at a study that found it can all be traced back to one person.
Healthline estimates that between 8 and 10 percent of the world’s population have blue eyes. And its rarity now makes sense, as scientists revealed that the genetic mutation came from a singular human who lived between 6,000 and 10,000 years ago.
Researchers have tried to discover what caused this change by studying the OCA2 gene, which determines the level of brown pigment in the human eye, for many years.
You can read a rather detailed explanation of all this in an article by Anish Vij published in the ladbible.com web site at: bit.ly/3xiNncH.