A small bone found in a cave in Siberia could indicate a new species of early humans . DNA of `` Denisovans '' is found in modern Melanesians . Score: 6
A small bone found in a cave in Siberia could indicate a new species of early humans . DNA of `` Denisovans '' is found in modern Melanesians . The finger belonged to 6- or 7-year-old girl , anthropologists say .