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Scientists Find Inverse Size Relationship Between Male Brains and Sex Organs

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posted on Jan, 11 2006 @ 06:47 PM
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The phenomenon may be attributable to targeted developmental stressors in humans.



Scientists at Syracuse University, recently describing for a British journal their study of body measurements of bats, found an inverse size relationship between a male bat's brain and testicles. The researchers hypothesized that both sperm and brains are metabolically costly to produce, and in species with relatively stable monogamous relationships, brains are allowed to grow, but where females are promiscuous, males that do not overdevelop testicles get left out of the race to procreate.

[News Limited (Sydney) (News.com.au), 12-7-05]Chuck Shepherd's News of the Weird


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posted on Jan, 11 2006 @ 06:51 PM
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Already posted here by loam:

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