Is it possible that many supposed social changes can ALSO be due to simple and basic FOOD and NUTRITION chemistry?
Check this out: http://www.rawstory.com/rs/2011/06/2...t-like-females
Check this out: http://www.rawstory.com/rs/2011/06/2...t-like-females
Mother deer mice were fed a diet with levels of BPA that were proportional to the amount the US government considers safe for pregnant women to ingest.
The lab mice were fed this diet for two weeks prior to breeding and throughout lactation.
After their babies were weaned, the offspring were fed a BPA-free diet and their behaviors were monitored into adulthood.
The male mice who were exposed to BPA showed less ability to navigate a maze safely. This skill -- useful in the search for potential mating partners -- is well developed only in male mice, since females do not seek out mates.
"The untreated mice quickly learned the most direct approach to finding the correct hole, while the exposed males appeared to employ a random, inefficient trial and error strategy," said the study.
When scientists observed how fertile females regarded the BPA males compared to the unexposed males, they found females preferred the chemical-free males by a factor of two to one.
The lab mice were fed this diet for two weeks prior to breeding and throughout lactation.
After their babies were weaned, the offspring were fed a BPA-free diet and their behaviors were monitored into adulthood.
The male mice who were exposed to BPA showed less ability to navigate a maze safely. This skill -- useful in the search for potential mating partners -- is well developed only in male mice, since females do not seek out mates.
"The untreated mice quickly learned the most direct approach to finding the correct hole, while the exposed males appeared to employ a random, inefficient trial and error strategy," said the study.
When scientists observed how fertile females regarded the BPA males compared to the unexposed males, they found females preferred the chemical-free males by a factor of two to one.
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