Antiquities, Prehistoric (4) Prehistoric peoples (4) bordure (2) résine (2) poison (2) acide (2) grotte (2) Implements (2) Tools (2) Evidence (2) grotte (2) pierre (1) Afrique du Sud (1) baie (1) recherche (1) information (1) hydrolyse (1) chasse (1) analyse (1) éther (1) oeuf (1) âge (1) point (1) chimie (1) Afrique (1) Chemical warfare (1) Composition (1) Adaptation (1) Identification (1) Dimers (1)