The red panda turns out to be a mammal of mystery. A genetic study by Hu et al. suggests that there are not one, but, in fact, two two distinct species: the Himalayan red panda (Ailurus fulgens) and the Chinese red panda (Ailurus styani).
Perhaps more surprising, red pandas seem not to be pandas at all, but, rather, a phylogenetic sister group to skunks, raccoons, and weasels.
As it is wont to do, science eventually ferrets out the truth.