Mustaches are everywhere - on sunglasses, rings, even on your baby. They're also on lots of animals.
This is one of my favorite NatGeo stories ever: Surprising Animals That Sport Mustaches. I've done many since but this is a favorite not just because I learned about some new animals (bearded pig, anyone?) but because I think the fun of writing it gets passed on to the reader. I hope so! Enjoy.
What did you do in the war, Colonel Fluffy Face?