This suggests some Stone Age cutting tools were products of chance, not planning.
Monkeys in southern Thailand use rocks to pound open oil palm nuts, inadvertently shattering stone pieces off their makeshift nutcrackers. These flakes resemble some sharp-edged stone tools presumed to have been created on purpose by ancient hominids, researchers say.
Thailand’s long-tailed macaques produce shards that could easily be mistaken for stone flakes previously found at 17 East African hominid sites dating from about 3.3 million to 1.56 million years ago, say archaeologist Tomos Proffitt and colleagues. The finding suggests thatScience AdvancesHeadlines and summaries of the latest Science News articles, delivered to your email inbox every Thursday.
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