Why Do Single Mothers Give Birth to More Girls Than Boys?

[petrochile]

I have picked up this week's edition of The Economist and they had this article in it, explaining, or should I say trying to figure out why single mothers birth more females, which is the opposite of the world's ratio. Here is the link to it:http://www.

Comments

[hnic]

Thank you. I subscribe very strongly to evolutionary explanations to everyday occurrences. I should have taken more biology...or any at all for that matter.