The New York Times reports that a recent fossil discovery has helped scientists close the gap between the species Australopithecus afarensis (the kin of the famed “Lucy” discovery) and an earlier species, Ardipithecus ramidus. The new discovery, consisting of bones and teeth, are the earliest known remains of Australopithecus. For years, scientists have been looking for links between Australopithecus and earlier ancestors, and this discovery in Ethiopia has helped bridge some of those connections… (Note: This site requires free registration.)