A new study by the Uppsala University et. al. has pushed the emergence of modern humans back to at least 300 kya and possibly even to 350 kya. Funny how not so long ago we used to think our species emerged 100 kya, then 200 kya, and now 300-350 kya isn’t it? Frankly, I think even newer research will soon push our emergence back even further! You can read the whole story at the link below.
Artistic bust of Peking Man
So consider this in perspective………. Homo erectus is believed to have went extinct around 143 kya so if modern humans emerged 300-350 kya then that means that these two species COEXISTED for at least 100-150 thousand years! And there was a time when H. erectus, modern humans, Heidelbergensis, and Neanderthals coexisted! And you don’t think all of these human species interbred? Think again LOL!!
Regarding Neanderthals two new studies have emerged. One suggests Neanderthal-Denisovans almost disappeared after separating from modern humans and that find challenges the conventional theory about all three species! Another study has revealed diet may be the blame for the Neanderthals demise in contrast to the diet of modern humans which enabled us to survive. Perhaps. I’m sure diet was important just as it is today but, again, I assert that the Neanderthals didn’t go extinct at all. They interbred with modern humans and produced viable offspring hybrids! In my mind what appears to have happened is (borrowing a line from Star Trek) modern humans came along and for all other species resistance was futile! These other species didn’t go extinct. We had sex with them and produced hybrid offspring capable of breeding and producing more hybrids! And that’s how we mods became the Mutt People we are today!!! Sorry…no pure races left and no pure human species left (if there was ever) and there hasn’t been for a long time. Want personal proof? Research your own ancestry and it will become as clear as day to you. Continue Reading
H/T to JR Bentley for sending us this research article………..
It would be an understatement to say that there are problems with the Out-of-Africa (OOA) theory and finally new research and reanalysis of prior research is attempting to correct some of those problems but what is being found is that the OOA may be absolutely WRONG to begin with. This becomes especially obvious when genetic evidence is looked at. In fact, WORLD science is now leaving the OOA theory behind and a Chinese research team is advancing an out-of-ASIA theory for modern human origins based on Y-DNA & mtDNA evidence and, thus, they are reviving the Multiregional Theory for human evolution based on autosomal evidence. The field of genetic research is becoming more precise and I think that is fantastic because it is now beginning to give us a new picture of human evolution and migration patterns!! Finally, we are getting some real concrete proof of what was and what was NOT.
The latest research by Chinese geneticists suggests that about 2 mya the first split occurred in modern human autosomes. Further, they’ve uncovered genetic evidence of Y and mtDNA having originated in East Asia and dispersing outward from East Asia via HYBRIDIZATION by archaic human ancestors!! This research strongly suggests a EURASIAN origin rather than an African origin for ancient human ancestors!! The primary research team is being led by Shi Huang who is a US educated and trained geneticist.
Huang’s research confirms genetic diversity is highest in Africans and lowest in Amerindians. His team also confirms Africans & Amerindians are genetically most divergent from each other. Africans are found to be closer to each other than they are to other groups and that New world sub-populations are more distinct from each other than other continental groups. Further, they’ve also found that Amerindians have the world’s highest values of intergroup diversity.
The findings of this research are currently under peer review and the team argues that African genetic diversity is NOT a function of greater age of African hominins but is a product of selection! This is supported by data showing increased African diversity in the study. Yuan uses autosomal molecular divergence dates as evidence for multiregional evolution. That date is derived from estimated molecular divergence between autosomes of major human groups to have taken place 1.96–1.91 mya which is consistent with paleobiological evidence for a Homo (human) migration out of Africa 2 myr. Continue Reading
The link below is to an excellent article well worth the read about the growing “mystery” concerning archaic humans with modern human features. It calls for the revamping of the Out of Africa theory and I wholeheartedly agree!
The norm has always been that more than one human species have coexisted at the same time and sometimes in the same place. Our nice little concept of an archaic human species giving way to a more modern human species now lies in tatters thanks to recent discoveries. That little Utopian idea no longer flies as the evidence says that there was MUCH interbreeding between human species and that HYBRIDS were produced and survived. In fact, they dominated and they (we) still dominate today!
In South Africa we have Homo naledi showing a mix of archaic and modern morphology. We have the same in Morocco. These finds are changing what we think in terms of human evolution because these specimens are NOT from archaic times but from MODERN TIMES! When I say modern times mean around 300 kya NOT millions of years ago. The “mystery” is really no mystery at all if we think in terms of hybrid offspring. What is being found in Morocco and South Africa and elsewhere is CLEAR EVIDENCE of hybridization! And not only that but we now know that there were many migrations out of Africa AND many migrations INTO Africa! So much for the OOA theory!! Continue Reading
Most fossil remains of ancient human ancestors have been found in East Africa in the Rift Valley and that area was once dotted by volcanoes. Volcanic ash killed these ancestors, buried them, and preserved them but that is not the case when it comes to Eurasia and that is ONE reason why we don’t find the amount of ancient human remains like that found in East Africa. That said, however, there have been some ancient remains found and I want to focus on those found in China in this post.
Artistic bust of Peking Man
Peking Man (aka: Beijing Man) was actually pieced together from fossil remains of several different individuals found at the Dragon Bone Hill site in Zhoukoudian near Beijing, China. It is an Eurasian H. erectus. It has prominent brow ridges, a saggital keel, an occipital bun, and a protruding upper jaw (prognathism) but no chin. These are all primitive features but its cranial capacity is about 1075 cc. The teeth and arm bones are almost indistinguishable from those of modern man! Also there is evidence of tool use was found nearby. Peking Man is estimated to be 500-300 kyr (thousand years old) which is older than Kabwe Man of Africa also known as “Broken Hill Man” and “Rhodesian Man.” The original skull of Peking Man was lost in WW2. There is also evidence of fire use at site as well as evidence of tool use and manufacturing. These were flaked stone tools and they also show he was right-handed. (according to Howells 1948, pg 49 et al). Continue Reading
It is believed that Neanderthals in the Altai Mountains (Denisova Cave) interbreed with Denisovans and a mystery species or as some call it a “ghost species” of hominin. There is also the enigma of Population Y which I’ve blogged about before. Now comes a new “ghost species.” In saliva samples researchers have found hints of a ghost species of archaic humans that may have passed on genetic material to ancestors of people living today in sub-Saharan Africa! And, this latest research adds evidence to a growing body of evidence that suggests interbreeding between different archaic human species was far more common than previously thought
It’s long been known that Neanderthals in the Altai Mountains interbred with the Denisovans and some “ghost species” of hominin but now this new evidence also suggests that humans in sub-Saharan Africa also interbred with archaic human species! It’s beginning to look like it was “sex with anything even remotely human!” was the call of the time!! We thought such interbreeding between human species was the exception but growing evidence is now suggesting just the opposite is true. In fact, it may have been the NORM rather than the exception! Continue Reading
“A team of scientists can verify that their 5 year long DNA study, currently under peer-review, confirms the existence of a novel hominin hybrid species, commonly called “Bigfoot” or “Sasquatch,” living in North America. Researchers extensive DNA sequencing suggests that the legendary Sasquatch is a human relative that arose approximately 15,000 years ago as a hybrid cross of modern Homo sapiens with an unknown primate species.”
So if we take the Ketchum report as factual then what we call “Bigfoot” came into existence 15 kya and it is a hybrid between Homo sapiens (modern humans) and an unknown hominid species. Fifteen thousand years ago the last ice age was drawing to an end as was the end of the Pleistocene Epoch and the present era known as the Holocene was just beginning. Mastodons were still roaming the North American continent at that time and they wouldn’t go extinct until around 10.5 kya. Smilodons were still around and they would not go extinct until about 10 kya. These were large cats found throughout the Americas and you likely know them as the infamous saber toothed cats or saber toothed tigers! Giant ground sloths were still around as well and didn’t go extinct until around 11 kya.
In terms of humans 13 kya sheep were being domesticated and the Sahara in North Africa was wet and fertile ground instead of the desert we see today! Humans were transitioning from hunter-gatherer cultures to farming cultures. Humans were Homo sapiens and they were AMH (anatomically modern humans) in form. Humans were already in the Americas including North America. The landbridge between Siberia and Alaska was still existent and some theorize that it was around this time that a large asteriod may have exploded over the North American continent wiping out some human civilizations and many of the large animals living there. Continue Reading
And it is beginning to appear that it was FREQUENT and not rare!!
Archaic admixture with modern humans is believed to have take place via interbreeding between modern humans
Dali Man Skull, China
and archaic humans such as Neanderthals, Denisovans, and possibly others. And I would certainly add Homo erectus.
Neanderthal DNA accounts for between 1-4% of the Eurasian genome in modern humans. However, this admixture is uncommon or nonexistent in the genomes of Sub-Saharan Africans. In Oceanians, Southeast Asians we find Denisovan DNA admixture. In Melanesian people we find 4-6% Denisovan DNA in their genomes.
African populations have a genetic contribution from a now extinct archaic African hominin in their genomes. Fossils, especially ancient human ancestor fossils, are rare because certain conditions must be present for fossils to form. Most species that die simply rot but every now and then the conditions are right and fossils form. In African environments there is a rapid decay of fossils and this makes it very difficult to compare modern human admixture to archaic African hominins such as H. ergaster and H. habilis et al. Further, about 2% genetic material found in some Sub-Saharan African populations entered the human genome about 35-40 kya. This was added by interbreeding with archaic human species (ancient human ancestors). Evidence for this suggests that this interbreeding mostly took place in CENTRAL Africa and NOT Eastern Africa as we would expect! In terms of geologic time 35-40 kya is NOT a long time. Continue Reading