Skeletons of the Sahara tells the story of paleontologist Paul Sereno. Based at the University of Chicago, Sereno is famous for unearthing new kinds of dinosaur bones all around the world. This PBS /National Geographic Special profiles his unexpected discovery in the Sahara Desert of a vast, prehistoric human burial ground. If Sereno hadn’t stumbled upon this ancient cemetery and then spent years of his life recovering the bones, a significant chapter of human history would have been eroded to dust by the blowing sand. Sereno’s work adds immeasurably to our knowledge of a time when the Sahara was green and people thrived on the fish and wildlife living in what is now the world’s largest desert.