There are several variations of what people believe the Chupacabra to look like. The current theory is that it is a bipedal creature around four to five feet tall described as a sort of a cross between a 'Grey' alien humanoid, mainly because the shape of its head and eyes, and what most witnesses describe as the body of a bipedal, erect dinosaur.
It has two small arms with a three-fingered clawed hand, two strong hind almost reptilian legs, again with three claws and spinal quills down its back, which it uses to fly. This appears to enable it to run quickly and leap over trees. Its head is oval in shape and has an elongated jaw.
Two red or black beady eyes have been reported, together with small holes in the nostril area, a small slit-like mouth with fang-type teeth protruding upwards and downwards from the jaw.
It appears to have strong course hair all over its body; and whilst most observers claim the hair is black, it has the remarkable ability to change colours at will, almost like a chamaleon. In the dark, it will change to black or a deep brown colour; in a sunlit area surrounded by vegetation, it changes to green, green-grey, light brown or beige.
Some believes it to be a half-man, half-beast vampire, while still others say it is similar to a panther with red eyes and the tongue of a snake.
Another version is that it hops like a kangaroo and smells like sulfur.