In human society, the "Wingman" courageously distracts and entertains the desierable woman's less attractive friend, so that his partner can have a chance to move in on the prize.
And the fundies say that humans are uniquly altruistic, but that's nothing when it comes to the altruism of the side-blotched lizard.
The side-blotched lizard will go out and "distract" a rival by letting the rival kick his ass. In the mean time, his buddy gets to enjoy the harem of females uninterrupted.
LOL! Eat your heart out human "lounge lizards"...you got nothin' on the real thing!
(hat tip: A Blog around the Clock)