The DNA of a 40,000-year-old pinkie points to a new hominid species, German researchers say. This could mean that at least four species of human-like creatures walked the Earth at the same time. DNA from a 40,000-year-old pinkie finger, belonging to a child and found in a cave in Siberia, indicates that the bone is from a previously unknown family of human relatives that lived among Neanderthals and modern humans, German researchers reported Wednesday.