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In the past, scientists assumed that our direct ancestors were the only toolmakers.

In the past, scientists assumed that our direct ancestors were the only toolmakers.

In the past, scientists assumed that our direct ancestors were the only toolmakers.

The occurrence of Levallois tools in the archaeological record is considered to represent an evolutionary hallmark in human technological development, as the predetermined nature of Levallois flake morphology is seen to reflect advancements in the cognition of early hominid toolmakers. A range of subtypes exist within the Levallois group, all of which feature differing preparation methods of the core surface as a means to predetermine the manufacture of distinct flake shapes. While archaeologists devoted much effort to investigate how Levallois core surfaces were prepared, relatively less atte...

Scientists analyzed stone tools to find out more about the early days of rice gathering. It's a starchy staple that goes well with all types of meat, vegetables, and can even be made into some tasty desserts. Rice is caloric, typically low-cost...