Men have nipples because, as an embryo, everyone is a female until the Y chromosome kicks in.
The person of the day is OssO1b
Why: voting
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Useless facts
RandomA book of interesting, but useless facts , for those who want to look a little smarter today !!!!!
Useless Fact #195
Men have nipples because, as an embryo, everyone is a female until the Y chromosome kicks in.
The person of the day is OssO1b
Why: voting
