One dominant melodic theme among evolutionary life scientist is that Homo sapiens left Africa about 60 or 70 thousand year ago , spreading across the world from there . It ’s calledthe “ out of Africa ” theory . But now , more evidence is challenging it .
https://gizmodo.com/how-did-humans-really-evolve-5774949
Illustration by John Sibbick
Over on New Scientist , Catherine Brahic offers a cogent summary of the unexampled grounds . Some hail from Asia , where scientist have discovered teeth that may be Homo sapiens dating from before 70 thousand years ago , and possibly from as long ago as 125 thousand . There are also fragments of other human skulls from Israel , which may see to as other as 150 thousand year ago .
What ’s emerge from this fragmental grounds — which is still far from widely bear — is a more complicated picture of when early world leave Africa , and where they depart . write Brahic :
A closer feel at the genetics also suggests there was an earlier migration . lately , Katerina Harvatiof the University of Tubingen in Germany and her colleagues tested the classic “ out of Africa at 60,000 yr ago ” story against the earlier - Book of Exodus melodic theme . They plugged the genomes of indigenous population from south - east Asia into a migration model . They regain that the genetic data was best explained by an early exodus that result Africa around 130,000 long time ago , taking a coastal route along the Arabian peninsula , India and into Australia , comply by a previous wave along the Greco-Roman road ( PNAS , doi.org/tz6 ) .
What this indicate is that the great unwashed may have been walking , or perhaps taking boats , up the sea-coast out of Africa and into the Middle East and India . In some slipway , this mirrors new discoveries about how people arrived in the Americas as well . It was once believed that people walk from Asia across a land bridge to North America , andnow many scientist think that masses may have arrived by travel lento along the glide in boat .
15,000 - year - old campsite in Texas challenge formal story of American settlement
The exposure we have of human development is growing more complicated , but it also fit with what we know of human migration today . It proceeds in tantrum and starts , taking many path .
show moreon New Scientist
anthropologyEvolutionHuman evolutionScience
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