Researchers: Some Chimps And Monkeys Have Now 'Entered The Stone Age'

Dustin Wicksell

Scientists on three continents have uncovered stone tools that weren't fashioned by the hands of men, and they are citing them as proof that some monkeys and chimpanzees have "entered the stone age."

As recently as just a few decades ago, scientists believed that humans were the only species to display tool usage. As the BBC points out, that is no longer the case, with researchers having documented numerous examples of many other animals, including primates, using tools. Generally, however, it wasn't believed that even primates or apes had the capacity for stone tool usage, yet even that assertion has been disproven over the last 15 years.

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When mankind entered our own stone age, we developed a variety of abilities, as Upworthy notes. Aside from domesticating dogs, we also learned to control fire, fashioned pottery and made crude, early boats. The ability of chimps and other animals to continue their development may be impeded by our very presence, however, as human actions continue to negatively impact primate habitat. It remains to be seen how chimpanzees and monkeys will develop during their own stone age, and whether the presence of man will be a deciding factor in their evolution.

[Photo by Cameron Spencer / Getty Images]