21 February 2018
The ancient population of Britain was almost completely replaced by newcomers about 4,500 years ago, a study shows.
The findings mean modern Britons trace just a small fraction of their ancestry to the people who built Stonehenge.
The astonishing result comes from analysis of DNA extracted from 400 ancient remains across Europe.
The mammoth study, published in Nature, suggests the newcomers, known as Beaker people, replaced 90% of the British gene pool in a few hundred years.
Lead author Prof David Reich, from Harvard Medical School in Cambridge, US, said: "The magnitude and suddenness of the population replacement is highly unexpected."