Sentences with phrase «flint representing»
The scientists argue that the jump in the frequency of burnt flints represents the time when ancestral humans learned to control fire, either by kindling it or by keeping it burning between natural wildfires.
http://www.sciencemag.org/ Not exact matches
That distinction between flint tools not exposed to fire and those that were represents the transition from sporadic to regular fire use among hominins, according to paleontologists in the cave's excavation.