http://msnbc.msn.com/id/4352011"Back in the tank, Roy and Silo's behavior indicated that they really wanted a kid. Zookeepers gave them a dummy penguin egg, just to see if they'd actually incubate it. When they did, zookeepers gave them an actual egg, which Roy and Silo again incubated. When the baby chick was born, Roy and Silo cared for it, feeding it yummy regurgitated smelt and keeping it warm until it could survive on its own.
...
So if Roy and Silo can do it, why can't humans? Indeed, if homosexual marriages exist in the animal kingdom, they must be normal. Then again, many opponents of gay marriage say that anything animals do is, well, animalistic and they want no part of it. But by that logic, we should give up straight sex, too, because animals pretty much invented it (and the French perfected it). And if Roy and Silo haven't destroyed the other penguins' heterosexual relationships, why do so many human heterosexuals feel that their marriages will be undermined just because a few thousand gays in San Francisco are pledging to spend the rest of their lives together?"
It's too bad that the Republicans are sub-penguin.