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Not exactly a single couple as the Post seems to suggest.
We have genes going back to perhaps one woman and perhaps genes bottnecking at one man .
This does NOT make them a couple, very likely they lived at very different times, and probably never met. Nor does it imply that there was ever only a single couple. Only that at some point our gene lines touched common ancestors as well as thousands of other people at the time.
Jay: This does NOT make them a couple, very likely they lived at very different times, and probably never met.
That is correct.
Anytime you have bifurcating descent, such as mitochondrial DNA or Y-chromosome, there will be a most recent common ancestor. This does not mean that mitochondrial Eve or Y-chromosome Adam existed at the same time. Nor does this mean the only genes that survive necessarily came from Eve or Adam. Interestingly the most recent common ancestor will tend to change over time.
Previous studies have shown that Eve and Adam are more recent than might have been expected otherwise, implying a genetic bottleneck. This study shows that many animals species experienced a similar bottleneck at about the same time, 100-200 thousand years ago, consistent with Earth's climate history.
Z: Interestingly the most recent common ancestor will tend to change over time.
Consider if Eve has two daughters, Shalva and Bat-Ami. Eve is the most recent maternal common ancestor. Over time the daughters have daughters who have daughters of their own. Over time various lineages will naturally go extinct. At some point, if all of Shalva's matrilineal descendants die out, then Bat-Ami will now be the most recent maternal common ancestor.
You are correct sir! Mr and Mrs Noah are the proud owners of these genes. We get the three races (Negroid, Mongoloid, and Caucasoid) from their three sons and their three genetically very different wives. Then we get all of human history from the great dispersion after the Tower of Babel fiasco.
We are all the product of many bottleneck events, when most of our ancestral tribes, dozens of them, were almost wiped out but a few survived. If there are a few really extreme ones, as suggested here, that is very cool, but it doesn't change the picture much.
Genesis is not a made-up, just so story, but an approximation preserved over generations. Its long-lived ancestors are more like dynasties. Taken that way, it is remarkably accurate.
Assistant Village Idiot
One breeding pair is FAR too few to produce a healthy gene pool. Something is wrong with either the methodology of this study or the way it's being interpreted.
Genetics based on DNA analysis is starting to look like today's cosmology, i.e. a rabbit hole. I suspect in 30-50 years we'll look back and laugh at all this, and be chasing some other kind of origin rainbow.
Considering that all life on Earth is based on DNA (or at least closely-related RNA), all employing basically the same structure and code, this story doesn't go anywhere near far enough. Every life form on Earth has a common ancestor in what amounts to a single cell or even proto-cell. DNA/RNA only happened once, apparently. From that came bacteria, archaea, prokaryotes, eukaryotes, plants, animals, viruses, mushrooms, trees, yeast, dinosaurs, whales, people, you name it.