Ancient CivilizationsAncient human DNA claim Posted on January 30, 2021 by Administrator One of our oldest ancestors crouches in a cave under African skies clutching a stone tool. The hominid, an early member of the human family, nicks itself and a drop of blood oozes on to the rock. Nearly two million years later, scientists detect microscopic traces of blood on the tool and extract the DNA. They say it is the oldest human genetic material ever found.