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Rule -> RE: Speech and Tool Making Evolved Together (9/10/2013 11:41:26 AM)
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quote:
ORIGINAL: ARIES83
You haven't explained your penis theory yet, Rule.
judging by your bout of plagiarism, you obviously want to make a point...
My point in both cases being that anyone may advance and argue a crazy hypothesis.
As a matter of fact before this thread had started I was beginning to read this article about the radiator theory. I solved the mystery of the evolution of our large brain back in the eighties, mentioned it in an unpublished article that I wrote in August last year and these days endeavour to upgrade that article in the hopes of getting it published; hence my literature research.
quote:
ORIGINAL: ARIES83
You haven't explained your penis theory yet, Rule.
So okay, a crazy hypothesis since there is a demand for it.
Let me state in advance that we do not know when spoken language evolved. Likely the apelike ancestors that we have in common with chimpanzees already had some form of extremely rudimentary language; see here. Undoubtedly, in my opinion, this language ability evolved exponentially once our hominid ancestors became bipedal in the pleasant lethal paradise of the African plains.
Simultaneously our ancestors also exponentially evolved an ever larger size. If the organs increased in proportion in size (of course they did not), then the penis must also have exponentially evolved an increased size. Wikipedia tells us: "the human penis is larger than that of any other primate, both in proportion to body size and in absolute terms".
We therefore have a correlation between the evolution of language and the evolution of a large penis.
Now for the crazy causal connection. (I promised only a correlation, but I realize that the next question will be for a causal connection.)
For the penis to become erect, the blood volume in the penis increases and simultaneously the blood volume in the rest of the body - therefore also in the brain - decreases. The blood drain from the brain is such that males may (nearly) faint when masturbating (or having intercourse) while standing up.
Now it so happens that the human brain also evolved disproportionately in size. Relative to all other organs, therefore, the blood volume in the brain disproportionately supplies most of the increase in the blood volume required for the erection of the evolved large penis.
Since the function of the brain and therefore the function and evolution of the language centers, is a function of its blood volume, we must conclude that it is only because of the evolution of the disproportionately large penis that the language centers could evolve.
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