A new genomic model indicates a significant bottleneck in human ancestor populations between 800,000 and 900,000 years ago, aligning with the era of the last common ancestor of Denisovans, Neanderthals, and modern Homo sapiens. Further archaeological evidence is needed for validation. Between 800
The core formula of our new inference method is shown. The image depicts a cliff painting, illustrating the population of human ancestor pull together to survive the unknown danger in the darkness during the ancient severe bottleneck. Credit: Shanghai Institute of Nutrition and Health, CASLong-Term Benadryl Doubles Risk of Memory Loss
A new genomic model indicates a significant bottleneck in human ancestor populations between 800,000 and 900,000 years ago, aligning with the era of the last common ancestor of Denisovans, Neanderthals, and modern Homo sapiens. Further archaeological evidence is needed for validation. Between 800,000 and 900,000 years ago, a significant crash occurred in the population of our human ancestors according to a new study. In the research, Wangjie Hu and colleagues present a compelling genomic model, indicating that a mere 1280 breeding individuals existed during the transition from the early to middle Pleistocene. This population bottleneck endured for about 117,000 years.
At the outset of the bottleneck, the ancestral population experienced a staggering 98.7% decline. The decline correlates with climatic changes characterized by extended glaciations, lowered marine surface temperatures, and likely prolonged droughts across Africa and Eurasia.Hu and his team pioneered a coalescence model, a tool designed to explore the divergence between gene lineages and estimate past population sizes.
“If, as seems likely, humans were widespread inside and outside of Africa in the period between about 800-900,000 years BP … whatever caused the inferred bottleneck was limited in its effects on the wider non-
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