Remains of the oldest known stone-tipped throwing spears, described in a new paper, are so ancient that they actually predate the earliest known fossils for our species by 85,000 years.
There are a couple possible implications, and both are mind-blowing. The first is that our species could be much older than previously thought, which would forever change the existing human family tree.
The second, and more likely at this point, is that a predecessor species to ours was extremely crafty and clever, making sophisticated tools long before Homo sapiens emerged.
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