The wolfskin tag is currently categorized as a species, I assume referring to the species from Fire Emblem Fates. However, wolfskin -fire_emblem produces a few posts depicting what appear to be regular wolf anthros as well as characters wearing a literal wolfskin as clothing. I am not familiar with the characters, so I do not know if they are intended to be Fire Emblem fan characters, but if not those posts will need cleanup. It may be worth creating a wolfskin_(clothing) tag for disambiguation.