The researchers published the results of a new study showing that breeding between Neanderthals and early humans was far more common than previously thought. The first humans and Neanderthals lived together for about 30,000 years and were certain to have had frequent contact during this period. Previously, researchers discovered that at least one couple of a Neanderthal man and an early man gave birth to offspring, which is reflected in the DNA of the man. modern man.
Scientists point out that about 2% of DNA in non-African humans today is of Neanderthal origin. Current research has shown that some people in East Asia have up to 20% more Neanderthal DNA than people of European descent. The data from the study were extracted from the 1000 Genomes project and measured the amount of Neanderthal DNA in the genetic material of volunteers.
The process involved separating the data into groups of people of European and Asian descent. Once these data were separated, multiple miscegenation cases were found between early humans and Neanderthals. The researchers then created simulations showing the results of different numbers of mating between the two groups.
These data were then introduced into an automatic learning algorithm that showed percentage patterns of DNA based on crossover events. The results of this study showed that many crossover events between humans and early Neanderthals occurred in East Asia and Europe.
This research was conducted by researchers Fernando Villanea and Joshua Schraiber from Temple University. The work was published in the journal Nature Ecology and Evolution. Other research conducted by Neanderthal last year showed that his brain was larger than that of modern humans.