Five quartz arrowheads found in a South African cave were laced with a slow-acting tumbleweed poison that would have tired ...

Traces of a toxic chemical found on 60,000-year-old arrowheads hint at advanced planning by Palaeolithic hunters.

A new analysis uncovers traces of poison on the South African arrowheads, pushing back the timeline for poisoned weapons by ...

Residues on arrow tips found in South Africa hint at how far back in history humans have been using poison for survival.