A 7,000-year-old antelope femur found in a South African cave has been identified as the earliest evidence of a multi-component arrow poison. Researchers discovered toxic compounds, including digitoxin and strophanthidin, revealing ancient humans’ advanced knowledge of plant toxins. The study suggests long-distance trade or travel for these ingredients, shedding lig…A 7,000-year-old antelope femur found in a South African cave has been identified as the earliest evidence of a multi-component arrow poison. Researchers discovered toxic compounds, including digitoxin and strophanthidin, revealing ancient humans’ advanced knowledge of plant toxins. The study suggests long-distance trade or travel for these ingredients, shedding lig…