Europeans used a kopyemetalka 31 thousand years ago

Archeologists investigated the stone tips found on a verkhnepaleolitichesky monument Mezyer-Kanal. With help series of experiments scientists found out that, apparently, these artifacts were used as tips of darts which hunters collectors threw with help kopyemetalka about 31 thousand years ago. As it is reported in article published in edition "Scientific Reports", these are the most ancient authentic evidence of use...