Males, If You Want To Be Sexier To Females, Act Less Like Your Sister

Thursday, October 21, 2010 - 12:00 in Psychology & Sociology

A new study in rats says growing up with lots of sisters makes a male less sexy to females, because the sex ratio of a male rat's family while young influences his sexual behavior and therefore how female rats respond to him later.Early life obviously affects later behavior but how early and how much of an impact and how can it be quantified in a less 'soft' fashion.    There are correlation studies that even conclude the position of a fetus in the uterus matters and that a female fetus that spends the pregnancy sandwiched between two brothers grows up to be more masculine because she's been exposed to their hormones.     read more

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