PROHABA.CO – Humans almost became extinct about 1 million years ago. Back then, the human population was only about 1,300 for over 100,000 years.
Scientists examined the genomes of more than 3,150 modern humans today from 10 African populations and 40 non-African populations.
They developed a new analytical tool to deduce the group that made up the ancestry of modern humans.
Almost one million years ago, a terrible event almost destroyed the ancestors of the human race.
That conclusion was reached from an analysis of genomic data from 3,154 modern humans.
The data show that the population decreased from about 100,000 to just 1,280 individuals about 900,000 years ago.
It was a population decline of 98.7 percent that lasted 117,000 years and could lead humanity to extinction.
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The team, led by geneticists Haipeng Li from the Chinese Academy of Sciences and Yi-Hsuan Pan from East China Normal University in China, in their study also tried to explain why this population gap occurred.
“The population disparities found in the African and Eurasian fossil records are due to bottlenecks in the Early Stone Age,” said anthropologist Giorgio Manzi of Rome’s Sapienza University in Italy.
Population decline An event known as a population ‘bottleneck’ and marked by a significant decrease in the number of herds is not uncommon.
Quoting Science Alert, Saturday (2/9/2023) this could happen when events such as war, famine, or the climate crisis occur.
This decrease in genetic numbers can be traced through the living descendants of the species.
For the latest analysis, researchers then developed a new method called the very small time coupling process (FitCoal) to avoid the accumulation of numerical errors typically associated with trying to uncover past events.
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They used FitCoal to analyze genomic data from 3,154 people from around the world, from ten African populations and 40 non-African populations, to see how lineage genes diverged over time.
2023-09-04 04:40:36
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