[roonTing]

They did a study with peacocks recently.. where the males who "got the most ass" had their tail feathers trimmed.... this resulted in less sex for the males until their feathers regrew.

A similar study with lions proved that males with darker neck hair were chosen over those with a lighter hair. After losing a fight, a lions hair actually lightened. Proving that the color of the hair has to do with the lions ability to protect, provide, and whatnot.

As for Asexuality... Due to imbreeding, it is never the only source of reproduction.