According to new research published in the European Journal of Human Genetics, our most recent ancestor, Adam, lived on Earth about 208,300 years ago. It was previously established that Home sapiens lived in Africa over 200,000 years ago. Researchers have now used biological models which shows that Adam or the Y-chromosome Adam is 8,300 years older than scientists originally believed to be. They have put Y-chromosomal Adam within the same time frame of the Mitochondrial Eve.
But these findings contradict a previous paper published in the American Journal of Human Genetics, in February 2013. It claimed that the human Y-chromosome originated in an altogether different species through interbreeding, and Adam was thought to be twice as old.
Their hypothesis have created a sort of space-time paradox but the most ancient individual belonging to Homo sapiens species has not yet been born. If we take the results from other studies seriously then we can conclude that the past may be altered by the mother of Adam deciding not to conceive him in the future, thus, bringing a retroactive end to our species.
It is certain that modern humans did not interbreed with Hominins living over 500,000 years ago. It is clear that there was no single Adam and Eve but rather groups of Adams and Eves living side by side and wandering together in our world.
“To what extent did our human ancestors interbreed with their closest relatives?” is a question that still remains unanswered.