Outline drawings. (A) Calcite-covered drawing of a mammoth in red ochre (Chauvet cave, Ardèche; Aurignacian, ∼ 29 000–32 000 BP), using natural features of the stalactite-covered wall as a partial outline of the head and trunk (right), legs and back (from Clottes, 2003). (B) Engraved bovids from a 1.7 m block at Qurta II, Upper Egypt (probably 15 000–16 000 BP); the double belly line is common in these drawings. Note the nicely observed relationship between the root of the tail and the haunches (from Huyge & Claes, 2008).