Which sex is the most loyal to one another?

Men are more loyal to their friends in general and women are more prone to gossiping behind their partners back then again this is just a generalisation and I'm not saying everyone acts like that

hmmm from my experience, men are generally more loyal towards one another. sometimes even blindly loyal. and women tend to do things like gossip, even without noticing sometimes. Both are very bad, and i think true healthy loyalty is decided by the individual's ability to overcome these urges; whether a man or woman.

Men from childhood are meant to try to 'make girls happy', and breaking a girls heart isn't something that makes them happy. So I'd say, men are more loyal... Also, women get hit on by a lot more guys in their lifetime, than men get hit on my other women. That's a fact...

It has nothing to do with gender, it has to do with the person. Some people are loyal, others aren't.

Myself is loyal

It's not a gender thing.The person that will stay loyal to someone else is the person that truly wants to be with them and has made up their mine to do so.

http://www.apa.org/monitor/dec04/women.aspx

Why? Nature or nurture? That has not been disentangled, so far as I know. One would have to look across many cultures to do so since, IMO, the West is currently clearly fostering the phenomena noted in the paper above.

It's tied beyond belief.

Neither , most people are me , myself & I !!