Boss monsters (Capracanis dominus) are a species of mammalian monster from the Undertale universe.
While they superficially resemble goats, they're closer to dogs than anything else. They are bipedal creatures with a dog-like appearance, goat-like horns and white fur. Like many monsters, their bodies are made up of as much magic as the human body is water. Adult boss monsters can only age if their child does, meaning they have to have a child in order to age past adulthood.
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