DNA from a 5,200-year-old Irish tomb hints at ancient royal incest
Genetic material from an interred man has many identical versions of the same genes
![Ireland's Newgrange passage tomb](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2020/06/061620_BB_newgrange_feat.jpg?fit=1028%2C579&ssl=1)
DNA from a man interred in Ireland’s Newgrange passage tomb (shown) indicates he was the son of an incestuous union, possibly within a ruling family more than 5,000 years ago.
Tjp finn/Wikimedia Commons (CC BY-SA 4.0)