My new team at work is 100% filled with women and spending lots of time with them for the past 7 months has made me wonder a few things.

I would like to understand why women go soft at the sight of a child or over emphasise with a situation, cry because something becomes too much for them and get too emotionally involved.

What is the reasoning for this behaviour? I am looking for an answer leaning towards scientific, no sexist comments please.

Thanks
@ Momo Chi: So is this why some men are gay? Are homosexuals using both parts of the brain too? Some are very feminine...