Monkeys in the Stone Age are reported for 3000 years
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Human beings were using stone tools , but that has been shown from about 2.5 million years ago, ancient relics, bearded capuchin monkeys According to the study of the relics of the civilization of beard capuchin is 'the stone age from at least about 3000 years ago It is said that
Three thousand years of wild capuchin stone tool use | Nature Ecology & Evolution
https://www.nature.com/articles/s41559-019-0904-4
Oldest non-human stone tools outside Africa found in Brazil
https://www.nationalgeographic.com/science/20019/06/capuchin-monkeys-used-stone-tools-3000-years-oldest-outside-africa/
Capuchin monkeys have a 3,000-year archaeological record | Ars Technica
https://arstechnica.com/science/2919/06/capuchin-monkeys-have-a-3000-year-archaeological-record/
The bearded monkey is a kind of capuchin monkey that inhabits in South America. It is known to handle the hand dexterously and use stone tools for eating, attacking and intimidating opponents, and courtship . For example, in order to take out the fruit from the shell of cashew nuts etc., the omnivorous bearded macaque monkey uses a stone that will be a 'hammer' that strikes on a nut and a 'step stone' for putting and breaking the fruit.
You can see how the bearded macaque monkey breaks a nut using a stone tool from the following movie.
Monkeys Use Stones to Crack Open Nuts | On Assignment-YouTube
A research team led by Primate scholar Tiago Falochico of the University of Sao Paulo, Brazil has conducted an archeological study of stoneware used by the bearded macaque monkeys . As a result, it is revealed that the bearded monkey has used stone tools for eating for 3000 years from the remains excavated from the stratum.
From the stratum 3000 years ago, hammers with a rugged shape smaller than those handled by the modern bearded macaque monkey are excavated, and from the stratum about 600 years ago, a considerably larger hammer and stone stone are excavated. The This changed so that the 3000-year-old hiberd's capuchin monkey, which used a small stone tool to eat small nuts, would handle a larger stone tool to eat a nut that is larger and harder than cashew nuts about 600 years ago. It suggests the possibility of having
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It is believed that human beings used the stone to process food like a bearded monkey before using the hammered stone tool made by crushing the stone. However, after that, human beings began to work on the stone itself gradually in stone history, such as using pointed stone tools like 'blades'. It is believed that humanity has begun to modify stone tools as changes in cognitive function and culture occur, but the bearded monkey is not at that stage.
Apart from chimpanzees, sea otters, crows, etc. are known as organisms that deal with stones, but archaeological records have not been found yet on how long those animals deal with stones. As such animals are members of the research team, Mr. Tomos Profit says, 'If we define the existence of individuals that treat stones as a tool in the' lithic era ', then the beech macaque is in the stone age. It is unpredictable at present whether it evolves from the Stone Age. '
Amazon.com: Watch the Planet of the Monkey (Subtitled Version) | Prime Video
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