Stone flakes made by modern monkeys trigger big questions about early humans

Monkeys using stones to crack open nuts generate many stone flakes accidentally that look exactly like the ones archaeologists have long thought early humans made intentionally as tools. Oops.(Image credit: Lydia V. Luncz)

Source: NPR Health and Science - March 10, 2023 Category: Consumer Health News Authors: Nell Greenfieldboyce Source Type: news