No scientific evidence that Homo naledi buried their dead and produced rock art

Here we argue that the evidence presented so far is not compelling enough to support the deliberate burial of the dead by H. naledi nor that they made the purported engravings. Substantial additional documentation and scientific analyses are needed before we can rule out that natural agents and post-depositional processes are responsible for the accumulation of bodies/body parts and to prove the intentional excavation and filling of pits by H. naledi. Moreover, detailed analyses are needed to demonstrate that the so-called ‘engravings’ are indeed human-made marks and that, like the purported evidence of fire use, they can be securely linked to H. naledi. Our commentary also offers a brief insight on the state of the field regarding the importance of responsible social communication and the challenges brought by new models of scientific publication.