Looking for Man's origins in a Bulgarian savannah

Seven million years ago the sunflower and corn fields in parts of southern Bulgaria were like an African savannah, roamed by gazelles and giraffes.A small team of researchers hopes to find proof of human origins in Bulgaria as they gingerly recover fossils from the clay of a dried-up river bed near the sleepy village of Rupkite in the June sunshine.It all began in 2002 when the five-year-old grandson of local amateur paleontologist Petar Popdimitrov found what looked like a fossilised tooth with