Only a probe that lands on Europa's ice-covered surface and bores a hole down to the world wide ocean will be able to tell. The crashed spacecraft was also recovered. Short, humanoid, bipedal being. Height may vary between 3.5 and 4.5 feet tall. Body is thin and skinny, almost fragile.
Limbs are also extremely thin and long, out of proportion to the body.
Three or four fingers per hand, usually with webbing between the digits. The head is very large with no hair, huge black eyes, two tiny nostrils, a very small slit of a mouth and no ears. Blood is reported as being a pale yellow or whitish substance. This creature has been seen on the island of Puerto Rico as well as in the southern United States and is said to be responsible for numerous animal mutilations. Folds of skin on its back and arms help it move along the ground at great speed and maybe even glide for some distance.