Mark Wieczorek

It seems that - at least in mice - all it requires is one relatively minor manipulation of a tiny bit of brain and you can turn female mice into aggressive “pelvic thrusting lotharios.” We’re not sure yet if the reverse is true too.

“All the thinking until now was that female brains can produce feminine behaviors while male brains can produce masculine behaviors, with little or no cross talk between them,” says Marc Breedlove, a neuroscientist at Michigan State University in East Lansing. “These results do suggest that, at least for mice, the brain retains circuitry to display both masculine and feminine behaviors into adulthood.”

Inside Every Girl Mouse Brain Is a Swaggering Boy Mouse [Video]: Scientific American

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