Greys are usually depicted as grey-skinned humanoid beings that possess smaller shapes, or lack external human organs. These creatures have no noses, no ears or reproductive organs Their bodies are also elongated, have a smaller chest than humans, and have minimal muscular definition. Their legs are short and their joints are quite different from what one would expect in a human. They are also depicted, as proportionally different as to human's but look very similar. Their thighs and limbs are equal in length as their forearms.
The Greys were first identified by abductee Barnie and Betty Hill. The Hill's stated that these visitors were about two feet tall (roughly 60cm) and the leaders being roughly around 121cm. Travis Walton was another alleged abductee, whom went missing for three days and confirmed that it was Grey aliens behind his kidnapping. The funny truth is that these abductees underwent a polygraph test (lie detecting test) and it was confirmed that they were not lying. Their story was in fact real is rather quite disturbing.
More interesting claims are that the Grey alien race is about 2 billion years old and shares a similar history to our own human history. Some go as far to argue that these aliens are us from the future, whom have evolved over 2 billion years.
During the early 1980s popular culture linked these aliens to the alleged crash landing of a flying saucer in Roswell, New Mexico in 1947. A number of witnesses came forward with statements claiming to have seen U.S. military handling a number of unusually proportioned, bald, child-sized beings and parts of a flying disc that resembled similar properties as acetate. Acetate had not been fully developed during this time and was actually a revolutionary product when it came out in the 1950's after the crash.
