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Social sciences/Anthropology/Physical anthropology/Genetic anthropology

Scientists have recovered the first ancient human DNA from cave sediments lacking human skeletal remains.
The new sites suggest that human adaptation to harsh environments could have happened earlier or faster than thought.
The 12,000-year-old skeleton contains the genetic signature of modern Native Americans, suggesting that the earliest Americans and Native Americans share a single ancestral population.

An analysis of 5000-year-old DNA taken from the remains of four Stone Age humans excavated in Sweden is helping researchers understand how agriculture spread throughout Europe. According to Pontus Skoglund from Uppsala University in Sweden and colleagues, the practice of farming appears to have moved with migrants from southern to northern Europe.