Science, Space and Technology News 2024
A new commentary discusses the impact of ancient DNA on tracing human origins, distinguishing between direct and indirect approaches to studying genetic changes. The work emphasizes the importance of ancient genomic data in revealing population dynamics, genetic diversity, and adaptations that have shaped the trajectory of human evolution., Fu Qiaomei and E.
Events in modern human prehistory that have increased overall population fitness, in turn supporting further survival and expansion of the global modern human population. Credit: IVPP The sequence-based approach can theoretically identify genetic changes common to all modern humans that distinguish them from Neanderthals and Denisovans, but the utility of this approach is currently limited by our incomplete understanding of the genetic diversity of archaic and early modern human populations.
Taken together, these population-level advantages, called “Allee effects” in population biology, can lead to improved success in activities such as resource exploitation, defense, and mate selection, and may have been sufficient to explain the different outcomes of early modern and archaic human populations.
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