science

Which animals have entered the 'Stone Age'?


From ants (opens in new tab) to fish (opens in new tab) to crows (opens in new tab), many animals use rocks as tools. But until recently, only humans and our hominin relatives had a recognized archaeological record of stone tool use. Now, the scientific community acknowledges that hominins have company. So which species have entered their own archaeological “stone age,” so to speak?

It turns out, the Stone Age isn’t the most exclusive club. Chimpanzees, capuchin monkeys and long-tailed macaques have also joined: archeological remains now document that they were using stone tools in the past. Sea otters (opens in new tab) may be next. 



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