- #1
bluemoonKY
- 131
- 16
https://en.wikipedia.org/wiki/Most_recent_common_ancestor
I was reading about the human most recent common ancestor (MRCA) at the above link at Wikipedia. According to this article at Wikipedia, there have been common human ancestors to all humans alive today. This sounds far-fetched to me. But what seems far more far-fetched to me than that is that the most recent common human ancestor may have lived just 3,000 years ago.
From Wikipedia: "The age of the human MRCA is unknown. It is necessarily younger than the age of both Y-MRCA and mt-MRCA, estimated at around 200,000 years, and it may be as recent as some 3,000 years ago."
As of 3,000 years ago in 983 B.C., there were already millions of humans on all the continents of the Earth except for Antartica. I'm assuming that the human MRCA lived in Africa. But my point is just as valid if the human MRCA did not live in Africa. Let's say that the human MRCA lived in Africa 3,000 years ago. How can this African human in 983 B.C. be the ancestor of the Native Americans? For this human MRCA in 983 B.C. to be the human MRCA, this human would have to be the ancestor of the Native Americans. But the Native Americans have been in America for over 10,000 years. How can this human MRCA in 983 B.C. possibly be the ancestor of Native Americans when the Native Americans migrated to the Americans before the human MRCA in 983 B.C. was even born?
What am I missing here?
I know that the Wikipedia link does not say that the human MRCA definitely was around only 3,000 years ago. I know that the Wikipedia link says that the human MRCA only say that the human MRCA possibly lived just 3,000 years ago. But how is it even possible?
I was reading about the human most recent common ancestor (MRCA) at the above link at Wikipedia. According to this article at Wikipedia, there have been common human ancestors to all humans alive today. This sounds far-fetched to me. But what seems far more far-fetched to me than that is that the most recent common human ancestor may have lived just 3,000 years ago.
From Wikipedia: "The age of the human MRCA is unknown. It is necessarily younger than the age of both Y-MRCA and mt-MRCA, estimated at around 200,000 years, and it may be as recent as some 3,000 years ago."
As of 3,000 years ago in 983 B.C., there were already millions of humans on all the continents of the Earth except for Antartica. I'm assuming that the human MRCA lived in Africa. But my point is just as valid if the human MRCA did not live in Africa. Let's say that the human MRCA lived in Africa 3,000 years ago. How can this African human in 983 B.C. be the ancestor of the Native Americans? For this human MRCA in 983 B.C. to be the human MRCA, this human would have to be the ancestor of the Native Americans. But the Native Americans have been in America for over 10,000 years. How can this human MRCA in 983 B.C. possibly be the ancestor of Native Americans when the Native Americans migrated to the Americans before the human MRCA in 983 B.C. was even born?
What am I missing here?
I know that the Wikipedia link does not say that the human MRCA definitely was around only 3,000 years ago. I know that the Wikipedia link says that the human MRCA only say that the human MRCA possibly lived just 3,000 years ago. But how is it even possible?