Our Ancestors Interbred With At Least Four Archaic Human Populations

It’s not long since we learned most of us carry DNA from Neanderthals and Denisovans, but that was only the beginning. A new study indicates the genetic legacy of at least four archaic human populations survives today from five or six rounds of interactions. Prejudice against sex between races looks pretty laughable when you consider our ancestors didn’t seem to care too much about the species they were having sex with.

To identify Neanderthal and Denisovan influences in modern genomes, scientists use DNA from fossil members of each. It’s much harder to identify the presence of gene variations from populations whose DNA we don’t have, but some teams have developed methods allowing us to do this. Dr João Teixeira of the University of Adelaide put this work together in the Proceedings of the National Academy of Sciences to create a picture of approximately where and when this intermixing occurred.

Teixeira explained to IFLScience that Neanderthal genes account for about 2 percent of the genome of everyone, other than those of recent African descent. Other archaic humans’ legacies are more concentrated in people from particular regions.


Recommended For You

FastEye Pages

FastEye Pages---Build UltraFast and High Converting Landing Pages


IM Newbie - Kevin Fahey's Internet Marketing For Beginners - Over 32 Training Modules

2019 Signature Series PLR Library

Viking Signature Series PLR is an awesome collection of internet marketing related PLR packages.


“Geneticists have come up with methods to screen the genome for deviations that look old,” Teixeira said. “The trick is to look for a set of variants that segregate together and are not found in Africa. After we match these with those from Neanderthals and Denisovans there are several left over.”

Archaic sequences in modern populations help us draw a picture of where we met these archaic populations.

One encounter, with a population dubbed Extinct Hominin 1, probably happened in India soon after humanity spread out of Africa and the ancestors of modern Asians and Europeans separated.




Our encounters with Neanderthals came not long after we left Africa, followed by Extinct Hominin 1, and Denisovans (3). Teixeira and Cooper PNAS

Another took place in the last ice age when sea levels were far lower and the Sunda Shelf united Borneo, Java, and Sumatra to the Asian mainland. Teixeira describes this as a “Denisovan-like event.” The population we mated with clearly had a lot in common with Denisovans, but their geographic isolation from their Siberian home makes it likely they were distinct.

The indigenous people of the Philippines have an extra helping of Denisovan-like genetics, suggesting a separate encounter there.

Perhaps most intriguing of all is the presence of genetic sequences in people from Flores. This was identified in a Science paper, but not highlighted, perhaps because the authors considered the findings tentative.


Recommended For You

StockNation Personal - 25,000 HD Premium Videos

Stocknation is a collection of amazing Searchable 25,000 Premium Stock HD Videos

Uduala DFY Gold

This is a DONE-For-You 6-Figure Ecom Business Setup By A Team With PROVEN Expertise and Customer SUCCESS... Store building, app installations, payment gateways, dropshipping automation... Everything Done For YOU!

vidgrafiX Pro

Biggest Video Graphic Asset Library


Teixeira told IFLScience the romantic notion some part of the “hobbits” (Homo floresiensis) survives within us is unlikely. The hobbits are believed to descend from Homo erectus. The Flores sequence appears to come from more closely related relatives, which the paper calls Extinct Hominin 2, on the island, and it is their genes that survive today.

We know that Neanderthals affected our immune systems and Denisovans gave Tibetans altitude adaptation. Teixeira said we haven’t been able to identify if the descendants of Extinct Hominins 1 and 2 have benefited.

Nevertheless, these long-gone people helped us become who we are. “Each of us carry within ourselves the genetic traces of these past mixing events,” Teixeira said in a statement. “These archaic groups were widespread and genetically diverse, and they survive in each of us. Their story is an integral part of how we came to be.”

Original Article : HERE ;

This post was curated & Posted using : RealSpecific

Thank you for taking the time to read our article.

If you enjoyed our content, we'd really appreciate some "love" with a share or two.

And ... Don't forget to have fun!


Commission Funnels PRO* | Automated Super Affiliate Funnels!

Highly Profitable Commission Funnels You Can Copy and Paste To Generate 6+ Figures Per Month! 100% CLOUD BASED WEB APP!

DigiFunnel Lab LITE

100% Done-For-You Highly Profitable Digital Affiliate Funnels - Crush It Online With Your Own Funnels!

Instant Buyer Traffic

2 Years in the making this case studies shows marketers how to generate 100% FREE Buyer Traffic to send to their blog, ecom store, affiliate offers .

Leave a Reply