Surely you've already heard about Heidi, the opossum in a German zoo who's become famous on the internet by being even uglier than a normal opossum. Maybe you read this article at the Christian Science Monitor, or Heidi's Wikipedia page, or this fan website that has sprung up to collect information on her. Or, you could go to her Facebook page or the website of the Leipzig Zoo, where Heidi resides. I can't think of much to add to that, but we couldn't let this phenomenon go without noting it here.
Jumping on the bandwagon,
-Wombat (No Relation)