Image: Australopithecus afarensis hand bones cast
This cast of an Australopithecus afarensis hand shows the characteristic long, curved finger bones. These are more like the hands of living apes than they are modern human hands. The cross section of the finger bones is also squarish, indicating either a partly arboreal lifestyle or that this is a primitive feature retained after they moved into a more terrestrial lifestyle.
- © Australian Museum