Humans Have Been Taking Out Insurance Policies for at Least 30,000 Years
by Megan Gannon/Smithsonianmag.com
Foragers today who live in southern Africa’s Kalahari Desert know that a drought or war can threaten their community’s survival. To mitigate these risks, they enter into partnerships with kin in other territories, both near and far, so that if they have a bad year, they can head to another area to gather water and food.
“It’s a really good adaptation to a desert environment like the Kalahari, which has huge spatial and temporal variability in resource distribution,” says Brian Stewart, an archaeologist at the University of Michigan. “It can be very rainy in one season and in the next absolutely dry, or it can be very rainy in your area and then 10 kilometers away, it’s just nothing.” According to new archaeological research led by Stewart, this kind of partnership—which acts as a kind of insurance against one side of the partnership having a down year—has been happening for at least 30,000 years old.
In the study, which was published today in the journal , Stewart and his colleagues examined ostrich eggshell beads found during archaeological excavations at two high elevation rock-shelters in Lesotho, a country enclaved within South Africa…