Scientists analyzing ancient DNA in Colombia found something unexpected — A 6,000-year-old genome with no descendants today
Scientists have found a long-lost DNA puzzle in our lineage.
For decades, we believed that our species evolved from one singular ancestor. But recent expeditions have allowed us to deepen our understanding of early human life. A team of researchers from the University of Colombia has made a remarkable discovery with far-reaching implications.
How would you feel knowing we have an ancient branch in our family tree, over 6,000 years old?
How we have studied our genome over the past decade
Over the past ten years, studying our human genome has shifted from a large and cumbersome undertaking that required vast amounts of resources into an everyday occurrence that is part of the routine.
The tools we use to date our genome have changed dramatically as well.
For the past decade, we have developed the Massively Parallel Sequencing platform that allows scientists to sequence an entire human genome for as little as a few hundred dollars.
Researchers can now sample individual cells as opposed to digging up large chunks of ancient Earth to study.
The human family tree may have a few branches missing
Over the past few decades, scientists have identified at least 21 human-like species that roamed the Earth.
However, recent advancements in DNA technology have suggested that our family tree was far more complex and “bushy” than we originally thought. For an exceedingly long time, we believed that humans emerged from the plains of Africa before heading out into the ancient world.
We now know that humans lived in proximity in the same time frame and came from as far away as China.
So, why, you ask, are there distinctive branches in our family tree that are missing?
Well, for one, many “ghost” species lived in parts of the world where bones degraded at a much faster rate. We know that our ancient lineage came out of Africa and spread its “wings” into Eurasia, reversing previously held beliefs for decades.
Through our astonishing technological progress, scientists have been making game-changing discoveries that rewrite our family tree.
For instance, we have recently found that our ancestors ate far stranger foods than we initially thought. We now understand that ancient humans did not survive on meat and vegetables alone and ate starchy foods on a regular basis.
A recent study, “A 6000-year-long genomic transect from the Bogotá Altiplano reveals multiple genetic shifts in the demographic history of Colombia,” published in Science, may have proven that a species of humans existed in the American continent before vanishing without a trace.
A missing link in our family tree has been identified and located
Deep in the plains of Colombia, scientists recently discovered an ancient genome of the earliest humans on the American continent.
The ancient tribe, which was found in the Bogotá Altiplano, lived a life disconnected from the rest of the world. They interbred and never ventured beyond their immediate surroundings.
The team of researchers was able to determine that this ancient species populated the region long before we initially thought, roughly 6,000 years ago.
To find this “ghost” tribe, researchers used advanced ancient DNA sequencing. What they found is that the tribe was unique and likely lived alongside other human-like species in the region, but never bred with them to mix DNA.
Instead, the tribe was replaced by a new migration of ancient humans, and left almost no trace in their wake.
Through our collective scientific progression, we have unearthed an ancient world of mystery that we are only now beginning to unravel. Everything from where the first “writings” made by humans were found, to the newly discovered ancient tribe that vanished without a trace.
Our human family tree is likely far more intricate and complex, featuring a unique mosaic of humans, each with their own ancient story to tell.
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