This category is for monsters.  Monsters are the freeks of mythology and are almost always antagonists.  They usually serve as the foes of gods and heroes.  They feature in every mythology and are still common in many of the religions, cults, folkways, and superstitions of today.  Please note that the term "Monster" here refers to mythical creatures of unatural nature, and should not be mistaken for a synonim of the term "Mythical creature".