According to the UFO literature, UFO occupants come in different humanoid shapes and sizes. Regarding shape, the occupants have more or less the basic humanoid shape: two legs, two arms, a head, and bilateral symmetry. Regarding size, the UFO occupants are typically described as being small, ranging from roughly 1 to 1½ meters in height. But some witnesses have also reported encountering humanoids ranging in height between 5 and 13 feet tall.

From left to right: Reptilian Alien, Ancient Alien, Grey Alien, Nordic Alien, Men in Black, Neonate Alien and Roswell Alien

Here is what is known so far about these seven types of alien beings...

In some rare cases, information about alien physiology and anatomy was leaked by a few privileged insiders who revealed that autopsies had been performed on alleged alien lifeforms. One particular case was discussed on a 1988 television special entitled UFO COVER UP - LIVE! hosted by Mike Farrell, which is referred to as the Foreign Technology Division/Wright-Patterson AFB Alien Evidence.

Then, in 1995, the FOX Network aired a controversial film entitled Alien Autopsy: Fact or Fiction? hosted by Jonathan Frakes. It was subsequently aired twice more, each time showing more footage of the "autopsy" and crash debris. After having been around the media circuit for a while and the subject of controversy, the film was eventually discarded by most researchers when someone apparently claimed to have faked it.

In their books FLYING SAUCER OCCUPANTS (1967) and ENCOUNTERS WITH UFO OCCUPANTS (1976), Jim and Coral Lorenzen wrote about several cases where ordinary people encountered unusual creatures in relation to the observation of an unidentified flying object on or near the ground.

The 1954 French flap, part 1

The 1954 French flap, part 2

In a 1979 documentary film entitled UFOs Are Real, Ted Phillips of the Center for Physical Trace Research is quoted as saying: "You find a surprising number of instances in which humanoids are reported...near the landed UFO. Some 22% or 325 cases involved humanoids. Generally described as small in size...kind of pale grey skin...little if any hair...wide set, quite prominent eyes...thin, spindly bodies...slightly enlarged heads, and wearing tight-fitting diver's suit, as it is generally described. In over 50 of the cases, there were found small footprints correlating of course with the small humanoids seen."