The conversation between human and AI assistant.
How far back has there been human occupation at Pedra Furada in Brazil and where did they come from?
That's really interesting. Are there any theories about why the early humans left the site?
There are many theories about why humans may have left Pedra Furada, including climate change, environmental degradation, and cultural factors. Some scientists believe that a changing climate may have made the area less hospitable for early humans, while others believe that cultural factors such as changes in social organization may have played a role in their departure.