The most typical alien appearance that is discussed in the majority of the encounter cases is “Grey.” Also referred to as Zeta Reticulans, Roswell Greys, or Gray, they are purported extraterrestrial beings. After the 1947 crash in Nevada, Greys became a worldwide sensation. They are grey-skinned, unusually small humanoid beings that lack external human body parts such as noses, ears, or reproductive organs.
There are many theories regarding the existence of Greys, and some people claim that they are future humans who lost their ability to procreate which is why they need humans for breeding. This bizarre theory is supported by Dr. David Jacobs. According to him, grey aliens were created using abducted humans due to them having a slit for a mouth which “doesn’t make sense.”
Dr. David Jacobs, an American historian and retired Associate Professor of History at Temple University shed light on the Greys biological structure and claimed that they were created using human DNA. After highlighting the similarities in appearance between grey aliens and humans, the professor is convinced they were created from the DNA of people that had been abducted.
Dr. Jacobs is extremely passionate about ufology and regularly tells the press about his hunches and thoughts. He previously talked about the fact that aliens have been walking on Earth among people for a long time, and also that they are planning a full-scale invasion.
During an interview with Richard Dolan in 2018, Dr. Jacobs casts some light on the alien abduction phenomenon. According to Dr. Jacobs, the Greys have barely visible earholes, nose holes, and tiny little mouths. But these parts do not seem to play an important role in their physiology, because the Greys communicate telepathically with the abducted and no one has ever noticed that they were breathing.