Prehistoric Britain
Past historians also thought that people migrating to Britain came in waves, with each new wave annihilating the last. However, DNA analysis suggests that this theory is not correct.  Scientists have analyzed the mitochondrial DNA of modern Europeans to find out who their ancestors were. They found that over 80% of modern Europeans are descended in the female line from European hunter-gatherers. Less than 20% are descended in the female line from Neolithic farmers from the Middle East. In 1997, scientists did DNA analysis on a tooth from a Mesolithic man whose remains were found in Sough's Cave at Cheddar Gorge. They found that 11% of modern European populations share this man’s mitochondrial DNA.