taken from your link:
Albert W. Mehlert is an evolutionist and paleoanthropology researcher:
The evidence given above makes it overwhelmingly likely that Lucy was no more than a variety of pygmy chimpanzee, and walked the same way (awkwardly upright on occasions, but mostly quadrupedal). The “evidence” for the alleged transformation from ape to man is extremely unconvincing.
where's the proof on that? careful with your statements. this doesn't strike me as proof but a BIASED OPINION.