Ice Age DNA
An international team analyzed teeth from 450 prehistoric humans, providing an unprecedented dataset on European hunter-gatherers.
The study examined inheritable dental features to understand relationships among Ice Age populations.
Between 47,000 and 28,000 years ago, Western and Eastern European populations were genetically connected.
The steppe landscape in Europe likely facilitated contact between hunter-gatherer groups.
From 28,000 to 14,700 years ago, no connection was found between Western and Eastern populations, with both experiencing population decline and loss of genetic diversity.
The Last Glacial Maximum led to extreme cold, causing Western populations to go extinct, later replaced by Eastern migrants as temperatures rose.
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