map the admiral turkish admiral piri reis tells us in his own handwriting on his map that he based it on more than one hundred older source maps that he believed to come from the library of alexandria they were falling apart and so he decided to preserve the information on them on his map and in the process he incorporated extremely accurate long to choose which we must then include conclude were present on those older source maps recently and australian paleoanthropologist discovered the possibility of yet another us. pieces of humans that existed alongside our ancestors up to fourteen thousand years ago what do these constant find say about our understanding of human evolution at this point i think i think what they say more generally about our understanding of the past is that our picture of the past is very incomplete i mean we've been going along for the last fifty or sixty or more years thinking that yes there was neanderthal man and also there was homo sapiens sapiens our own species that was its man became extinct what thirty thirty five perhaps twenty five thousand years a