New hypothesis suggests early humans used natural sharp rocks

Researchers from the Cleveland Museum of Natural History have proposed a new hypothesis about the origin of stone tools. They suggest that early humans initially used naturally sharp rocks before developing the technique of knapping to create their own tools. The team, led by Dr. Emma Finestone and her colleagues, found that sharp rocks are more common in nature than previously thought. Their research indicates that these naturally occurring tools could have been readily available to early hominins for food processing. This new perspective suggests that the use of natural sharp rocks may have driven the need for humans to create their own tools. The researchers call for further investigation into the use of these natural tools by hominins, which could push back the timeline of human technological development.