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Abstract thinking
"I'm cautious about its significance," said Professor Chris Stringer, also of the Natural History Museum. "The association of the handaxe and the skeletons in this pit of bones is a very interesting one," adding that it was possible there was some sort of symbolic association.
A team of scientists led by an anthropologist at the University of California-Berkeley has discovered the fossilized remains of what they believe is humanity's earliest known ancestor, a creature that walked the wooded highlands of East Africa nearly 6 million years ago.