 From around 200,000 BP, however, there is noticeable elaboration in the procedures used to manufacture stone implements, with an increased use of Levallois (prepared core) techniques, and an increased efficiency of raw material usage as tools were resharpened and reused for multiple purposes throughout their ‘lifetimes’.Dated at approximately 180,000 BP, two impressive piles of animal bones, consisting of selected cuts of mammoths and woolly rhinoceros, appear to have been dragged beneath an overhang after being butchered.These innovations mark a transition stage between Middle and Upper Paleolithic subsistence strategies.