Stone-age massacre offers earliest evidence of human warfare

Researchers say remains of 27 murdered tribespeople in Kenya prove attacks were normal part of hunter-gatherer relations

Some 10,000 years ago a woman in the last stages of pregnancy met a terrible death, trussed like a captive animal and dumped into shallow water at the edge of a Kenyan lagoon. She died with at least 27 members of her tribe, all equally brutally murdered, in the earliest evidence of warfare between stone age hunter-gatherers.

The fossilised remains of the victims, still lying where they fell, preserved in the sediment of a marshy pool that dried up thousands of years ago, were found by a team of scientists from Cambridge University.