Eric Walker added Our Earliest Ancestors - YouTube to a number of topics
Eric Walker added Ardipithecus ramidus - Wikipedia to Ardipithecus ramidus
Eric Walker added a number of links to Ardipithecus ramidus, and added Ardipithecus ramidus to Ardipithecus
Eric Walker added Ardipithecus kadaba and Ardipithecus ramidus and Ardipithecus - Wikipedia and Welcome to the Ruthless, Cutthroat World of Paleoanthropology - The New York Times to Ardipithecus, and added Ardipithecus to Australopithecines