But one of the craziest theories has to be the vampire theory. Vampires have appeared in almost every culture’s legends since the dawn of time. From Bram Stoker’s “Dracula” to “Twilight”, vampire legends can differ drastically based on where they are in the world. And the Chupacabra certainly behaves like a typical vampire. They both suck blood and only seem to come out at night. Sure, they might not be suave, sophisticated creatures but the Chupacabra certainly sounds like something vampiric.