Examinations (3) puits (2) test (2) pierre (2) recherche (2) matière première (2) métal (2) Implements (2) Antiquities (2) Antiquities, Prehistoric (2) Olduvai Gorge (Tanzania) (2) Work (2) Tools (2) Stone (2) Research (2) Raw materials (2) Quartzite (2) Performance (2) Prehistoric peoples (2) Cutting (2) Chert (2) Antiquities (2) Research (2) Performance (2) chert (2) subvention (1) espèce (1) Asie du Sud-Est (1) société (humaine) (1) comportement (1)