From History of Yesterday:
Professor Hans Eiberg from the Department of Cellular and Molecular Medicine was the one to discover this back in 2008. Based on this study and many others that had been previously done with a focus on the human genome, Professor Eiberg came up with an interesting conclusion stating that the human organism will keep on evolving:
“it simply shows that nature is constantly shuffling the human genome, creating a genetic cocktail of human chromosomes and trying out different changes as it does so.”
Originally, all our ancestors had brown eyes, but a mutation affection the OCA2 gene in our chromosomes resulted in humans being born with different colored eyes. Taking into consideration that between 8% to 10% of the global population has blue eyes, it is possible that blue-eyed people have a single ancestor. However, the question that everyone is probably asking is, who is this special ancestor? (Read more.)
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