researchers are aware that chimpanzees have practiced similar tactics in the 1980s , but it was not even established if the instruments they used were designed specifically for the task of gathers the insects . of all the tools the chimps left standing and marca ' s team recovered , 80 % were now made by their owners . shakira believes the latest researcher has confirmed that their designs have since evolved , proving previous conjectures .
Chimps design tools to catch termites.