begin by closely studying the bones of the face, and observing asymmetries in bone structure and variations in the development of muscle markings. These are clues to the personal characteristics ...

Some of the bones reach up to nearly 15 inches (38 centimeters) long. The bone tools, which all appear to have been systematically produced in the same style as one another, were found in Tanzania ...

It seems the hominins who made the bone tools carefully selected the bones of large mammals, most commonly elephant and hippopotamus. "Precise anatomical knowledge and understanding of bone ...