Our hunter-gatherer societies have known for millennia what modern science discovered only later – namely the poisonous properties of certain plants and animals, and how to turn these natural toxins to their own use.
Image: Wilfried Berns
Most of us have heard of the poison dart frog, but there is much more to this story than just this one toxic amphibian.
Image: Chai Yen
Elderly Semelai man using blowpipe
There are at least six other substances, five of them extracted from plants and one more from another animal, that have been used by hunting tribesmen to tip their arrows with and thus kill their prey more quickly.