Everyone laughs. It's how we make life fun. Because life is funny! While enjoying laughter is universal, no two laughs are alike. Types of laughs can have their own style, which can define the personality of the person who's laughing.
The moon need not be full to appreciate this laugh. The howl is a prolonged laugh that is part human, part beast, where the head is thrown back and the windows rattle. Our jokes will bring out the wolf in many a howler.