Crimes against nature?

Some how I had overlooked this piece of news.

Australia rocked by 'lesbian' koala revelation

Female koalas indulge in lesbian "sex sessions", rejecting male suitors and attempting to mate with each other, sometimes up to five at a time, according to researchers.

The furry, eucalyptus-eating creatures appear to develop this tendency for same-sex liaisons when they are in captivity. In the wild, they remain heterosexual

Somehow I am a little doubtful about the last sentence. My guess would be that this behaviour hasn't been observed in nature, but that it still goes on. It's somewhat easier to monitor animals in captivity than in the wild - and no one has probably thought of looking for the behaviour in the wild.

Of course, Koalas are just the latest in a long list of species displaying bi- or homosexual behaviour. Which makes the whole idea of homosexuality being "against nature" quite foolish, but since when has that stopped fundamentalists?