"Sound good? Nice parrots. However, they are merely postponing the point at which the red teeth and claws come into the picture. These parrot parents produce more than two offspring. What do you think happens to most of them? They go off and found happy egalitarian parrot families of their own? Maybe for a little while. But a species can't expand indefinitely. Most of these new parrots will get eaten or starve to death. The lucky few will go on to put dozens of new parrots into the world, for natural selection to claw apart and eat alive. r is evil, but K is not so great either."