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Re: is our brain part of evolution?
Bryant (mycol1@unm.edu)
15 Oct 1996 10:41:19 -0600
In article <326138f2.29153039@news.netvision.net.il>,
ITAY <itay@netvision.net.il> wrote:
>Our brain as it is today could not (at least that iswhat i think)
>could not become as comlex as it is just of evolution, why?
>if we watch the western culther, but mostly african or indian, we
>can well see that the brain was used in last 10000-2000 years only
>for simple tasks, i mean not by all people but by most of them,
>so how come that the evuolution made a brain as big as that to become
>so big, if only 10%-30% were used ?
There is not evidence, so far as I am aware, that we only use, or that
our ancestors only used, 10 to 30% of the most metabolically expensive
tissue we possess.
Spatial tasks, social interactions, language acquisition, etc., were well
represented selective pressures in ancestral environments.
>so either our brain is a freak of nature, or a made by god? or maby we
>werent part of the evolution and have been put here by other?
>is that a stupid theroy? i realy want to know...
It's not a theory, it's a hypothesis. A very, very weak one that doesn't
account for the facts and is based upon assertions which I do not think
correlate with what is known about our ancestors' lives.
Respectfully,
Bryant
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