Answer:
Extinction of animals, plants, and other organisms caused by human actions may go as far back as the late Pleistocene, over 12,000 years ago. There is a correlation between megafaunal extinction and the arrival of humans.
Answer: Over 12,000 years ago
Explanation: Please rephrase your question in a way a can answer your question but i am certain that the answer is around 12,000 years ago
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