Ancient DNA from graves reveals "jaw-dropping" discovery about Iron Age women in U.K., scientists say

Female family ties were at the heart of social networks in Celtic society in Britain before the Roman invasion, a new analysis suggests.

Genetic evidence from a late Iron Age cemetery shows that women were closely related while unrelated men tended to come into the community from elsewhere, likely after marriage.

An examination of ancient DNA recovered from 57 graves in Dorset in southwest England shows that two-thirds of the individuals were descended from a single maternal lineage. The cemetery was used from around 100 B.C. to 200 A.D.