A sample of hair belonging to the legendary 19th century Native American leader Sitting Bull has allowed scientists to confirm that a South Dakota man is his great-grandson.
Sitting Bull
Scientists took DNA from a tiny sample of Sitting Bull's hair that had been stored in Washington DC.
It showed that Ernie LaPointe, 73, is his great-grandson.
The new method allows analysis of family lineages with DNA fragments from long-dead people.
You can read more about this story in the BBC News web site at: https://www.bbc.com/news/world-us-canada-59062133.