The 25,000-Year-Old Teeth That Just Rewrote The History Of Human Drug Use

This honest uncertainty is appropriate for the evidence.

The mechanisms of sustained use are documented.

The reasons for initial adoption are not.

The Ice Age World Of The Sulawesi Foragers

The person who lived between 16,000 and 25,000 years ago in the karst country of South Sulawesi inhabited a very different world from the modern one — but not as different as the time gap might suggest.

25,000 years ago falls within the Last Glacial Maximum — the coldest phase of the most recent Ice Age, when ice sheets covered much of northern Europe, northern North America, and the high-latitude zones of the Southern Hemisphere.