Many animals use natural objects, sometimes with some modification, as tools to obtain food. Examples include New Caledonian crows who cut twigs and leaves to produce a variety of tool forms and ...

Sharp stone technology chipped over three million years allowed early humans to exploit animal and plant food resources, which in turn played a large role in increasing human brain size and ...

The Palaeolithic archaeological record in Britain captures a rather sudden increase in stone knapping skills around half a million years ago, indicating that a major milestone in human evolution may ...