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Author Topic:   Leakey vs Johanson
fighterspirt
Inactive Member


Message 7 of 17 (48376)
08-02-2003 3:55 AM
Reply to: Message 1 by Andya Primanda
05-28-2002 6:28 AM


Currently I am translating a book by Richard Leakey. One of the first things to be obvious is that Leakey has a bias; he does not consider any australopithecines to be directly ancestral to Homo sapiens. I can't help but feel that he may be wrong, however he cites studies of their middle ear, posture, rib cage, etc. to back up his position.
On the other hand, Donald Johanson, discoverer of Lucy, seems to be on the opposite camp, by holding that australopithecines did become humans. However I must tell you (embarrassedly) that I haven't read much from him, much less his views against Leakey.
Leakey pointed that there should be another Homo species which gave rise to Homo habilis, which he thought could not have descended from australopithecines. This is maybe his weak point for no such fossil have been found.
Does anybody know more about this?
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The question still arises today. Due to the missing link in Human evolution, there is no substantial evidence that the australopithecus can have actually 'arisen' homosapiens.
I think that the main reason for this argument today is the 'respread' of the homosapiens, as they travelled again from Africa to other continents after the Homo Erectus had already travelled. If the Homoerectus (a direct descendant of the australopithecus) did not evovle into homosapiens there, then the australopithecus is not a direct descendant.
Just a few ideas.

This message is a reply to:
 Message 1 by Andya Primanda, posted 05-28-2002 6:28 AM Andya Primanda has not replied

  
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