quote:
There is only one "form" of evolution. Natural selection working on random mutations to change a population over time.
Not strictly true. There is another form of evolution. Sexual Selection. It is almost identical to Natural Selection but instead of selection by improved survivability, it involves selection by improved attraction to the opposite sex, and thus descendants.
There is a good Sexual Selection explanation of humanities large brain:
When man split off from Austalopithecus, and became a hunter, bands became larger, thus enhanced communication was needed (Chimps enhance group solidarity by mutual grooming, Man by talking - more efficient as it allows bigger groups), thus the most succesful communicator in a group would attract higher status, thus a better chance of leaving descendants.
[This message has been edited by MarkAustin, 08-15-2003]
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