File:Why are all monsters girls.jpg

Summary
Ever wondered why all the Extra-species are mostly formed of just girls? Here is a theory based on actual facts and put together with the art of "Monster Musume".

This is a "fan art" respecting the original work created by master Okayado, purely intended to both inform and amuse.

Here is a link to the original work, enjoy. http://reneastorga15.deviantart.com/art/Monster-Musume-Why-are-all-the-monsters-girls-547348153