"This row of images shows the male canine condition of Ardipithecus ramidus (center digital image) intermediate in size between humans (left) and chimpanzees. The reduced size of canine teeth is an indication of a shift in social behavior away from male-male aggression, and is one of the hallmarks of the human lineage." National Geographic
"A fairly complete skeleton of Ardipithecus ramidus, which replaced Lucy as the earliest known skeleton from the human branch of the primate family tree." National Geographic
"A fairly complete skeleton of Ardipithecus ramidus, which replaced Lucy as the earliest known skeleton from the human branch of the primate family tree."
"The Middle Awash study area, where the Ardipithecus bones were found,
is on the Awash River about 140 miles (230 kilometers) from the Ethiopian capital of Addis Ababa." National Geographic
"A. ramidus (artist's reconstruction, center) was adapted both to climbing in the trees and walking on the ground, according to researchers who studied its fossils. In this illustration, a reconstruction of A. ramidus appears between a silhouette of a chimpanzee (left) and one of Australopithecus afarensis, all scaled to be the same height." National Geographic