Genetic information indicates that the world’s population consists of only about 1,280 individuals capable of reproduction. This small population would not have expanded for approximately 117,000 years.
Genetic information from 3,154 human genomes – a collection of chromosomes and genes – allowed the study’s authors to discover that about 98.7% of our ancestors died during this phase, which may coincide with dramatic changes in climate during the middle, long, long Pleistocene. Extreme ice age. The team used genes from 10 African and 40 non-African populations.
CNN adds that that moment would have led to the emergence of a new species that would be “the common ancestor of modern humans, or Homo sapiens, and Neanderthals.”
According to the study, controlling fires and climate change, making human life more convenient, may have contributed to the rapid population increase 813,000 years ago.
“This discovery raises many questions, such as where these individuals lived, how they survived catastrophic climate change, and whether natural selection during a period of population decline accelerated the evolution of the human brain,” said Yi Hsuan, lead author of the study. Pan, a genomics scientist at East China University.
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