A 2009 study found that the closer a woman lives to the equator, the more likely she is to give birth to a female.
Source: https://royalsocietypublishing.org/doi/abs/10.1098/rsbl.2009.0069
A 2009 study found that the closer a woman lives to the equator, the more likely she is to give birth to a female.
Source: https://royalsocietypublishing.org/doi/abs/10.1098/rsbl.2009.0069