FRIDAY DATA DUMP: Gene Swapping Sapiens
Will We Get Smoked By The Great Filter?
THE SET-UP: Our understanding of hominin evolution continues to grow as scientists match a steady stream of new archeological and anthropological discoveries with advanced genetic analyses. Almost like starlight seen through the James Webb Space Telescope, DNA allows scientists to trace the passing and transfer of traits over time. Some lead back to other hominins and, as a result, the picture of human origins has become crowded with other species that shared this planet with early Homo sapiens.
We were not alone.
A new analysis of a long-overlooked population strengthens the case that our ancestors were not only “not alone” … they often “didn’t want to be alone tonight” (if you know what I mean) … and we have the DNA to prove it. That’s the big takeaway from a just-released study of human geonomics around the South Pacific. It’s a population that’s been ignored by Euro-centric scientists, until now.
Here’s what they did:
By tracing the deep history of the Pacific's earliest pioneers, who migrated to the region at least 45,000 years ago, the researchers uncovered unprecedented insights into human evolutionary history and adaptation. For example, they discovered that ancestors of Near Oceanic populations mated with at least three distinct groups related to Denisovans—an enigmatic hominin group initially discovered from fossil fragments in Siberia.
Here’s how they did it:
For the new study, the researchers used an advanced functional genomic technique known as a massively parallel reporter assay to physically test the functional consequences of these genetic variants and identified more than 3,100 that alter gene expression. This analysis provided some of the largest-scale evidence for how specific, adaptive genetic variants inherited from Denisovans function inside humans today.
Here’s what they found:
The team found that a substantial proportion of these adaptive and functional variants affected the interferon-gamma signaling pathway, a vital component of the human immune system that defends against infectious pathogens.
And this:
The study also revealed that Denisovan DNA influences skeletal development. The researchers discovered adaptive variants inherited from Denisovans in a specific gene called TRPS1. This same gene has been under strong positive selection in central African rainforest hunter-gatherers and highland populations in Ecuador, showing how evolution can result in recurrent local adaptations in different regions of the world.
Our cousins’ DNA is not just a historical curiosity, it continues to be an evolutionary force:
The study shows that archaic DNA is still actively shaping human biology, noted Steven Reilly, assistant professor of genetics at Yale School of Medicine and co-author of the study.
“We found thousands of archaic variants that tune genes up or down, concentrated in immune and antiviral pathways,” he said. “Neanderthals and Denisovans had adapted to life outside Africa over hundreds of thousands of years, and we inherited some of those genetic programs and co-opted them. Tens of thousands of years later, this DNA may still shape how these populations fight viruses—or their risk for autoimmune disease.”
“Inherited” and “co-opted” are, of course, euphemisms.
Our direct ancestors left Africa and found hominins already living around Eurasia, and they were adapted to Eurasia in ways our ancestors were not. The math after that is quite simple.
How? and why? they mated are still unclear, but science is making a lot of headway.
We know for certain that we evolved alongside other species and populations we could and did interbreed with. It might’ve been violent, too. That’s the rub. Do we even want to know how we became the last hominin standing? Or is answering that question crucial to our evolution as a species?
The question is of particular importance now that we are on the verge of fully automating warfare.
That’s an invitation to humanity’s inhumanity if there ever was one. History shows we rarely turn down an invitation to be inhumane. And we do seem to be barreling toward a “Great Filter” moment when our technology so grotesquely outstrips our wisdom that it will inevitably snuff us out before we can explore space.
The irony is that these advances in understanding our species come at the same time the US government is being run by people who think Earth is less than 10k years old. Big decisions about war and peace and the fate of millions are being based upon ancient folklore about a tribal warlord-god, maybe we should begin to look at the nearly 300k years prior to that tribal warlord-god’s creation.
Even that is a geological blip compared to the fossil record and the geological record.
And no, Pete Hegseth, the fossils are not a trick to deceive mankind. Hopefully some time soon, humanity will stop deceiving itself.
A lack of sex held back life’s diversity for millions of years
https://www.cam.ac.uk/research/news/a-lack-of-sex-held-back-lifes-diversity-for-millions-of-years
Scientists discover ancient single-celled ancestors still live on in your blood
https://www.sciencedaily.com/releases/2026/05/260526022006.htm
Human evolution was messy and gradual, not an abrupt revolution, argues archaeologist
https://phys.org/news/2026-06-human-evolution-messy-gradual-abrupt.html
New fossils suggest human evolution was more crowded than scientists thought
https://www.baltimoresun.com/2026/06/09/human-evolution-crowded/
800,000 Years Ago, Ancient Humans Knew Which Stones Made the Best Tools
https://www.discovermagazine.com/800-000-years-ago-ancient-humans-knew-which-stones-made-the-best-tools-49223
Human Ancestors Were Using Fire Earlier Than Previously Thought
https://nautil.us/human-ancestors-were-using-fire-earlier-than-previously-thought-1281795
Wonderwerk Cave bones reveal possible fire use by human ancestors 1.79 million years ago
https://phys.org/news/2026-06-wonderwerk-cave-bones-reveal-human.html
Ancient DNA shared with Neanderthals may explain human language
https://www.sciencedaily.com/releases/2026/06/260611024612.htm
In 1926, Archaeologists Found The Skull Of The “Devil’s Tower Child” Neanderthal And Changed Everything We Knew About This Extinct Human Species
https://www.iflscience.com/in-1926-archaeologists-found-the-skull-of-the-devils-tower-child-neanderthal-and-changed-everything-we-knew-about-this-extinct-human-species-83797
Pangenomics transforms evolutionary biology
https://royalsociety.org/science-events-and-lectures/2026/06/pangenomics/