DNA from an ancient fossil reveals that Asians and Native Americans share a common ascendant , which lends further evidence to the possibility that multitude from Asia were the first man to set human foot in the Americas . Researchers in China and Europe sequenced DNA distill from a 40,000 - year - sometime branch off-white ( pictured ) see in the Tianyuan Cave site near Beijing .
At the time this individual was awake , modernistic humans co - existed with Neanderthals andDenisovans , two groups of early homo who diverged from Homo sapiens about 300 - 400 thousand year ago . Evolutionary biologists have already sequenced deoxyribonucleic acid from both Neanderthals and Denisovans , and discovered evidence that they were have children with modern humans ( many modern European and Asiatic people have Neanderthal and Denisovan DNA ) . But until recently , we have jazz little about the genetic makeup of palaeolithic humans who lived in Asia . What we do know is that as early on as a million years ago , tool - using hominins called Homo erectus were survive in Asia , and scientist have yearn to get hold out what hap to them .
https://gizmodo.com/another-humanoid-species-co-existed-with-early-humans-a-5715516
This bone does n’t give us any cue about what happened to Homo erectus in Asia , though we ’re pretty sure this hominin evolved into Homo sapiens in Africa . What we did rule out is that former mod world in Asia were very similar to Asians today . And they share enough DNA with Native Americans to confirm that it ’s very likely an ancient Asian peoplecame to the Americas in reed boats that they piloted along the shorelinefrom the realm that is China today all the way over to what are today the many country on the Pacific side of the Americas .
https://gizmodo.com/15-000-year-old-campsite-in-texas-challenges-convention-5785151
According toa release about the study :
Qiaomei Fu , Matthias Meyer and co-worker of the Max Planck Institute for Evolutionary Anthropology in Leipzig , Germany , extracted nuclear and mitochondrial DNA from a 40,000 twelvemonth quondam leg pearl . . . For their study the researchers were using new techniques that can identify ancient genetical cloth from an archaeological discovery even when big amount of DNA from soil bacterium are present .
The researcher then reconstruct a genetic profile of the wooden leg ’s owner . “ This individual lived during an important evolutionary transition when former forward-looking humans , who shared certain features with earlier conformation such as Neanderthals , were replace Neanderthals and Denisovans , who later became out ” , suppose Svante Pääbo of the Max Planck Institute for Evolutionary Anthropology , who led the field . . .
The genetic visibility discover that this early modern human was related to the ancestors of many present - day Asians and Native Americans but had already diverge genetically from the ancestors of present - day Europeans . In increase , the Tianyuan individual did not carry a large ratio of Neanderthal or Denisovan DNA than present - day people in the region . “ More analyses of extra early forward-looking humans across Eurasia will further refine our understanding of when and how mod humankind diffuse across Europe and Asia ” , says Svante Pääbo .
We may never know what happened to Homo erectus in Asia , however , because these hominins lived too long ago for their DNA to have been preserve .
Read the full scientific paperon PNAS
Photo by MPI for Evolutionary Anthropology
anthropologyBiologyEvolutionGeneticsScience
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