Audie
Veteran Member
Hundreds of them - fragments of the skeletons of more than 300 different individuals of just the species australopithecus afarensis have been found.
Probably - the reasons for believing this are based on the shape and articulation of the pelvis and femur which for australopitecus afarensis are similar to humans AND on the probability that the Laetoli footprints were made by a member of this species - even if that is a bit tentative, it is pretty certain that the footprints were made by a bipedal hominin at the time (about 3.7 million years ago) that austalopithecus afarensis was around. However, later evidence suggests that there were bipedal hominins even before that...but anyways, it seems very likely that Lucy walked upright on two legs.
I'm not sure what you are getting here...but...I know that in recent discoveries of ancient homonins in the Phillipines (for example) tools were found in the same layers of sediments as the fossilized remains of the hominins and also with the bones of animals that showed signs of having been butchered...given that these sediments were laid down 60,000+ years ago, who else do you suppose might have left the tools there?
Lucy was not found with tools...but fairly recently some evidence has emerged that suggests that australopithecus afarensis might have used tools. Again, this comes from the discovery of bones of animals that show signs of having been butchered - but in this case - and we are now talking about 3.5 million years ago or thereabouts - the evidence is not conclusive...so this one, we just don't know yet...maybe we never will.
Hope the answers help.
Chimps and crows use tools.