DAVID PARKER / SCIENCE PHOTO LIBRARY DAVID PARKER / SCIENCE PHOTO LIBRARY
Saharan rock painting. Rock art depicting human figures hunting with a boat. The climate inNorth Africa has varied significantly over the past 12,000 years. This has had a profound effect on human occupation and subsistence. During these wet periods, life flourished deep in what is now desert. The first wet stage occured 12,000 - 8,000 years ago and the second 7,000 - 5,000 years ago. During these phases, populations lived off fish and riverine mammals. Photographed in Tadrart, Tassili National Park, Algeria.
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