User:SOTO/Forum Archive/The Panopticon/@comment-24894325-20170117192114/@comment-24894325-20170118191843
Indeed, it is very common for writers, especially in the non-visual media (audio and prose) to use descriptions like Ruslan (from Doom Coalition 2) saying about himself "This bear doesn't bite." Result: his species is currently indicated as "Bear" as that's the best we know. Obviously, he is not the ordinary Earth bear as he can talk. But no category for his species was found.
Even in the visual arts, Foxkin from the Twelfth Doctor comics have evolved from Earth foxes. But they're sentient species, not anymore the same as foxes. Again, no category could be found for their species.
There are categories like Category:Aquatic species or Category:Avian species, but somehow no comparable category for mammal species. Perhaps, because we cannot be sure the alien species are mammal. But not having such a category creates a problem every time we see something like a Mammoth on Traxis. I'm sure there are a gazillion of similar examples all across the spectrum.