Many osseous remains have been found in caves with the remains of Pleistocene primates (some people think they are the ancestors of humans). From the frequency of the discovery of various bones, many animals died elsewhere, but only certain parts of the body was brought back to the cave. 
The remains in the cave do not include the bones of an elephant  from the same period as the Pleistocene primate
 Pleistocene primates must be good at hunting for bring back so many prey.