Discovery upon discovery at cave sites around the world including those at Creswell Crags provides testimony to the existence of Pleistocene Man. The presence of human remains, if not of his bones, yet of intelligently contrived implements in British and foreign caves in such intimate association with the teeth and bones of the mammoth, woolly rhinoceros, cave bear, hyaena, reindeer, and other animals allowed no other explanation than that of contemporaneity.
These discoveries show us that the Palaeolithic age of Man was one of lengthened duration, the earliest period in which Man was a mere savage, in the very lowest state of culture, but gradually improving to men in a higher state of civilisation who used more perfectly formed implements. And the discoveries in the Creswell caves, where the more finished type of implements has been found above the ruder in undisturbed beds, show that the more civilised man has succeeded and replaced the earlier savage race, or else that this latter, in the course of ages, improved in the arts of tool-making, and learnt, not only to shape the flint more elaborately, but also to make use of bone for domestic and other purposes.