Interesting video with a two minute explanation featuring Kent State University anthropologist Owen Lovejoy.
Looking ahead, Dr. White lamented that there were so few sites in Africa known to have fossil deposits six million to seven million years old. “We are getting so close to that common ancestor of hominids and chimps, and we’d love to find an earlier skeleton,” he said.
And I especially love this from the same article:
[F]urther evidence that the species had already evolved a distinctive trait of early prehumans.
Ardi’s upper canine teeth are more like the stubby ones of modern humans than the long, sharp, pointed ones of male chimpanzees and most other primates.
Hmmm. . . .