Genetic evidence reveals female migration and small community sizes in Neanderthal populations
In short: Researchers analyzing DNA from 13 Neanderthals in Siberia's Altai Mountains found evidence of a highly structured social life. The study observed that some individuals were closely related, such as a father and daughter, and that the community was likely small and isolated.
By examining genome-wide nuclear data, mitochondrial, and Y-can-chromosome sequences, the researchers identified high levels of homozygosity in one-third of the Chagyrskaya individuals. This suggests these Neanderthals lived in small, isolated groups. Additionally, the much lower diversity in Y-chromosomes compared to mitochondrial DNA suggests females may have migrated between different communities.
The study is limited to a specific group of individuals from two cave sites in the Altai Mountains.
Why it matters: The genetic makeup of these Neanderthals points to a social structure driven by female movement between small, isolated groups.
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Sources
- Source: Research: Skov et al. (2022). Genetic insights into the social organization of Neanderthals. Nature. · cc-by
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