I think that's something like asking an American if they've ever heard of Mickey Mouse
I'm pretty sure that there's no one in Finland that's not aware of them, ha ha. There's one of the multiple television series almost constantly in TV, you can't walk in a store without seeing multiple Moomin merchandize (any store catering to tourists is filled with Moomins), the books are usually read in school at some point, there's Moomin balloons every Vappu, they have their own comic magazine and Moomins have their own theme park and museum in here... you can find the full list of all the stuff in Wikipedia.

Yes, that and the other Ask-blog (though I didn't create the university thing).
I don't think I'll be doing comics on this subject much anymore, but I'll consider the idea! I'm familiar of it from a kid's horror book (though I think the idea was about werewolves, which makes more sense since it's pretty easy to distinguish a human and dog tongue from each other).