Mitochondrial Eve’: Mother of All Humans.wouldn’t that make us all a product of incest?.
Another study states that all men with blue eyes came from the same father.
Not sure about all the above.
About incest - sort of, but I’m not sure about the blue eyes thing - it’s a geographically common trait that occurs within a wide gamut of races (Europe, Middle East, India, etc.)
Given that we are all cousins to a certain extent and have common ancestors if you go back far enough then yes, we are all products of ‘incest’ depending on how you define the term. To be honest though, once you get to second or third cousin and beyond, calling these kinds of sexual relations ‘incest’ is stretching the term a bit...