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A previously unknown ‘Ghost’ ancestor of humanity has been discovered

Anatomically, the modern human species we know today originated 300,000 years ago on the African continent. Homo heidelbergensis or evolved from a similar species, and humans migrating out of Africa gradually replaced or joined local archaic human populations. crossed.

The remains of a young girl who lived during this crossing shocked scientists. After the discovery, scientists began to study ancient and modern human genetic code. deep learning algorithms thanks to partially proved a theory that had been around for a long time.

A previously undiscovered intermediate ancestor of humans has been discovered

No one knew who this young girl’s remains belonged to, but there was a distinct difference. These remains belonged to a teenage girl from over 50,000 years ago, and scientists have never seen modern humans. a ‘hybrid’ ancestor it looked like. Scientists have also found evidence that the person to whom these remains belonged was not alone.

In the study that began in 2019, scientists found that with the help of artificial intelligence, modern humans emerged from Africa and spread to Eurasia. mixed species during the great migration examined. Thanks to artificial intelligence, which compares the genes in the relics with the genes of modern humans, this crossing revealed who the 50,000-year-old remains belonged to. discovered as an intermediate type of human ancestor.

Until now, Neanderthals and Denisovans were thought to be the related species in this migration. However, this study revealed that a third ancient species lived in Eurasian DNA long ago, thanks to deep learning algorithms.

Using a statistical technique called Bayesian inference, the researchers found that what they call “backcrossing,” in other words, modern humans interbred during African migration. of a “ghost” archaic population They found the evidence.

But according to scientists, the work is just beginning. Applying this kind of AI analysis is a new technique in human ancestry, and the known fossil evidence we are dealing with may be extremely sparse. On the other hand, according to the research, what the team found not only explains a long-forgotten process of introversion, but also It informs us about who we are today.

Source: Web Tekno



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