Male human heads found in a 'skull pit' in an ancient Chinese city hint at sex-specific sacrifice rituals

A large rock carved with a face stands in front of archaeological ruins of a wall.

Just outside the gate of a 4,000-year-old city in China, archaeologists found a pit full of 80 skulls from human sacrifice victims. Now, a new study has revealed a surprising fact about the victims: Nine out of 10 were men.

In the study, published Nov. 26 in the journal Nature, researchers analyzed DNA collected from skeletons found in the ancient city of Shimao and its satellite towns to figure out the social and kinship structure of this Neolithic society.