Didja hear about the homosexual penguins who adopted an egg when the egg’s parents kept kicking it out of the nest? (No, there’s no punchline.)
Of course, many unwanted children are adopted this way (by humans, not penguins) and they turn out just fine, though a lot of people refuse to believe it. Gay men and women can be parents together, and their kids turn out just fine, thank you.
I can see it now: this will somehow lead to the assertion that gay marriage will lead to unholy unions between men and penguins. Some douchebag preacher will get himself on T.V. and say, “It’s Adam and EVE, not Adam and — uh, Steve the Penguin! Protect marriage from homo flightless waterfowl!”