They left no pottery, which had not yet been developed.

They were not farmers and did not raise livestock.

Their subsistence was based entirely on what the landscape could provide: red deer, wild boar, aurochs (the ancestor of modern cattle), beaver, otter, fish, shellfish, birds, nuts, berries, roots, and all the other products of the postglacial European environment.

They were highly mobile — following the seasonal movements of game, moving between resources as they became available.

This mobility left relatively few traces in the archaeological record: temporary campsites, scattered tools, occasional burials.