One trouble with this argument is that animal analogies don't always deliver the politically correct message. This news story says:
Gay penguin goes straightYeah, the liberals and homosexuals making animal analogies will also be at a loss to explain it also. The alleged homosexuality in animals really doesn't resemble homosexual behavior in humans at all.
THE animal kingdom's most famous gay couple has split up. Silo and Roy, the cohabiting penguins of Central Park Zoo, are no longer an item. The pair rose to prominence six years ago when they came out with their same-sex relationship.
Since then, they have successfully hatched and raised an adoptive chick (after an uncertain start that involved trying to incubate a rock). ... But the affair ended when Scrappy, a new female penguin, moved into the neighbourhood and caught Silo's eye. ... Silo promptly moved in with Scrappy, building a new nest with her.
Zookeepers are at a loss to explain Silo's sudden conversion.