This is a tricky one. At first I thought the Koala because it's a marsupial. Then I remembered that Pandas give birth to tiny young, but I don't think it's in a pouch. But wait... Possums are marsupials. So that isn't it. So let's try something else... back to the Koala; it's the ONLY one of the six whose habitat is entirely in the southern hemisphere. That IS a fact. But then there's the Sloth — it's the only one in the group that has just three toes. Veeery tricky.

I'm going to go with the Koala, but that's an intuitive flyer, more than anything.

=^..^=