But after that point, they crafted a diverse array of stone tools. One type, known as a hand ax, is a large, teardrop-shaped stone with a double-sided edge. Hominins also made cleavers and ...
SÅ‚awomir Brzozowski was weeding his raspberry patch in Potok Górny, Poland when he came across an unusual rock. Smooth and ...
Credit: Australian National University This type of axe is a sophisticated specimen with a high sheen on its edges -- the result of being rubbed against sandstone hundreds of times. "This kind of ...