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Extraterrestrials and Ufo Aliens - What Can We Know About Them?

Updated on March 15, 2019
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Robert writes eclectic and informative articles about a variety of historical subjects including unusual events and people.

U.F.O. Aliens - Close Encounters

Studying the Greys - Extraterrestrials on Earth

This hub examines the question: If aliens are visiting our planet, what can we tell about these extraterrestrials and where they come from?

The purpose of this hub is not to examine the question of whether UFO's or extraterrestrials exist, or whether there are aliens on other planets. I realize that this is a very controversial subject and I have no idea if aliens exist or not, though I believe that it is naïve to think that aliens do not exist or that if they do, they have never come to Earth. I have never seen a UFO and have no idea whether the eyewitness accounts are accurate, or hoaxes or something else. For the purpose of this discussion, however, I am going to assume that the thousands of eye witnesses who claim to have seen aliens and/or been abducted by them are telling the truth and that they actually had a close encounter of the third kind.

The question then is: what can we tell about these aliens based on their behavior and their physical characteristics? Can we tell anything about their biological makeup, their culture, and their planet based on what we have observed of them? I think we can tell a lot about them.

Most sightings of alien beings describe three distinct types of extraterrestrials or aliens: the humanoid Greys, the Reptilians, and small child sized humanoids.

For the purpose of this discussion I am going to focus on the Greys. The Greys are generally described as being physically weak, with two arms and two legs, between three and four fingers, large eyes, and grayish skin.

Worlds and Creatures More Alien Than We Can Ever Imagine
Worlds and Creatures More Alien Than We Can Ever Imagine

Alien Spacecrafts

Not a UFO - Many UFO Sightings Result from Mistaking Commonplace Objects for Extraterrestrial Devices. This picture is actually of a tower lit up at night.
Not a UFO - Many UFO Sightings Result from Mistaking Commonplace Objects for Extraterrestrial Devices. This picture is actually of a tower lit up at night.
We resemble apes because we evolved from a common ancestor. Greys have many physical similarities with humans. Does this mean we are related somehow?
We resemble apes because we evolved from a common ancestor. Greys have many physical similarities with humans. Does this mean we are related somehow? | Source

What Grey Aliens Look Like and What We Can Tell From This


We can learn a lot from their appearances. Firstly, the aliens are humanoid which suggests that they are mammals. Mammals give birth to live children. Despite the asexual appearance of the Greys, they may have male and female members of the their race. They may have family units and raise children, although their society may be arranged in a way radically different from us. The Greys may have moved beyond sexual reproduction and now rely on cloning, as suggested by their rather generic appearance.

The Grey Aliens are not muscular which suggests that they are from a planet with low gravity or that their technology has made physical labor unnecessary.

The Greys have two eyes in the front of their face which means that they have depth perception. The fact that the aliens have two eyes in the front of the face is consistent with being a predator: forward facing eyes allow for binocular or stereoscopic vision, which gives predators depth perception. It is what lets a hunter seize its prey. Compare this to a cow which has one eye on each side of its head so that it can better see predators approaching. In this, Greys have a lot in common with other predators such as humans, owls and sharks; and that's bad news for us. It means that they are predators like us, not cute and fluffy creatures.

" Sometimes I think the surest sign that intelligent life exists elsewhere in the universe is that none of it has tried to contact us ..."

— Calvin & Hobbes

What Can We Tell About Their Home World?

The aliens' appearance is consistent with the evolutionary history of humans: we became the dominant species by being the super predator on our planet. It is reasonable to assume that the Greys also evolved as predators and hunters on their planet. The fact that they are predators means that they are creatures who kill other creatures for food; they do not eat primarily non-sentient plants. As such they are likely to be aggressive, which makes them dangerous to humans.

The Greys' large eyes also suggest that they can see in the dark which means that they evolved from nocturnal predators or on a planet where there is less light, such as a planet where their sun is dimmer than ours or farther away from its star.

Greys have openings approximately where we have our noses. This means that they breathe. In fact, Greys are rarely seen wearing space suits which suggests that they can breathe our air and are not susceptible to airborne bacteria on our planet. This is an important point. It means that if the eyewitness accounts are accurate, the Greys come from a planet that has a similar atmosphere to ours and a similar ecosystem. This is bad news for us; if the Grey aliens can live on our planet, they may find our real estate attractive and they may have plans to evict the current human occupants.

Greys have two legs and two feet which means that they walk like us. This is interesting because the majority of creatures on this planet do not walk like us: most mammals are quadrupeds, and the majority of creatures on this planet are insects and propel themselves with 4 to 6 legs, or more.

It would be quite a coincidence for an intelligent species on another planet to have evolved with the same method of locomotion as us. Perhaps we have a common evolutionary ancestor; we may be descended from them or they may represent an ancient race of humans that reached the stars, and evolved away from the human norm due to conditions on the planets that they colonized.


The physical similarities between humans and aliens also mean that the Greys may share similarities with us in how they design their living space. For example, alien mammals with two legs would have a need to sit and would likely invent chairs and tables.

Aliens have fingers and opposable thumbs. This too is quite a significant, and may not be a coincidence. Although opposable thumbs are quite useful in handling tools, and there may be an evolutionary reason for this feature cropping up in two unrelated species on different planets, hands and fingers are not the only physical configuration that would allow an intelligent alien to develop tools. The fact that Grey aliens have hands suggests at the very least a similar way of interacting with and handling the objects in their world. It may also indicate a shared ancestor.

We can also make some educated guesses about their mathematics and way of numbering from their hands. We humans tend to count and group things by multiples of 5s or 10s because we have five fingers on each hand, and ten fingers in total. This is fundamentally the reason we use a decimal system of counting.

But there is no objective reason that a mathematical system based on ten would be superior to one based on 8 or any other multiple. It is just that we find ten easier because our earliest ancestors learned to count and developed arithmetic based on the number of their fingers. We can assume that Greys use a system of counting and mathematics based on 8, matching the number of fingers on their hands.

Astronaut Buzz Aldrin Recounts Apollo 11 UFO Encounter

The fact that the Greys have two arms and two legs is also interesting. There is no reason that an intelligent alien could not have 4 arms, for example. There is nothing special about being a biped and in fact most creatures on our planet have more limbs than us. The fact that the Greys have similar characteristics and are humanoid bipeds suggests that they come from a planet very similar to ours and have followed a similar evolutionary path.

In fact, one might argue that the odds of another planet being so similar to ours that it produced a dominant species which was humanoid and very similar to us (one head, two eyes, two arms, two legs, etc) are very low. If they exist at all, it is possible that the Grey aliens somehow evolved from humans and their original home is earth or perhaps we are a lost colony of the Greys. This might explain their physical similarities.

However, even if the aliens' home world is very earth-like, the odds against an Alien being independently evolving a body similar to us (one head, two eyes, torso, two arms, and two legs) are staggering. Even if the conditions on the aliens' home planet are very similar to Earth, there are many other paths that their evolutionary development could have followed. The fact that the result of their evolution produced a human-like alien is remarkable and may tell us something about their home world.

Alien Life Forms
Alien Life Forms

Fighter Jets Chasing UFOs

This is real footage of Belgian fighter jets (F-16s) attempting to intercept UFOs over Belgium. The UFOs were detected on radar and were also seen by hundreds of eyewitnesses on the ground.

Similarities Between Humans and Greys

Grey Aliens
Two Eyes
Two Eyes
Alien eyes are larger but both species have forward facing eyes which means that the aliens have depth perception and are likely evolved from predators.
One head.
One head.
The alien head appears larger, perhaps indicating a larger brain and greater intelligence.
Two Hands
Two Hands.
The aliens are said to have 8 fingers. However like humans they have hands with opposable thumbs. This indicates tool use and a way of interacting with the world like us.
One Mouth
One Mouth
Aliens appear to have a smaller mouth, sometimes only a slit. Teeth have not been described. This may suggest that they get their nutrition in liquid form, perhaps a synthetic nutritional goo.
Two Legs / Feet
Two Legs / Feet
The Greys' feet have not been described but they appear to walk in the same way we do.
Two ears
Two ears, but holes only.
The Greys have ears but do not have ear lobes. This means they can hear sound, but without the ear lobes to concentrated the sound, they may have poorer hearing than us. This feature is consistent with reports of the aliens using telepathy; they may not need hearing to communicate.

There are many physical similarities between Humans and Greys. This may indicate that they evolved on a planet similar to ours, or that we have a common evolutionary ancestor.

Do You Believe that Aliens Exist?

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Anal Probes and Alien Abductions - What We Can Learn From Alien Behavior


We do not know much about alien behavior, but if eyewitness accounts are true they kidnap humans and subject them to medical experiments such as anal probes and forced impregnation to create alien human hybrids. Again, I am not saying that any of this is true. But if it is, what does it tell us about aliens?

Firstly, aliens use tools - such as anal probes - to learn things. It means that, like us, they rely on instruments and technology to learn about things. It also means that they do not know everything, or otherwise they would not conduct experiments and investigations.

Secondly, it means that they have a very low regard for humans or have a system of ethics that does not forbid experiments on unwilling abductees. They do not ask for consent, and their behavior is more consistent with a laboratory scientist conducting experiments on a chimpanzee than a human doctor recruiting willing test subjects for a medical trial. This says a lot about their view of us humans, and their morality. Whether or not they have a private morality or code or conduct, they do not seem to afford humans any rights. The one good thing about this is that they do not seem to kill humans, as the test subjects are generally released.

The stories of alien/human hybrid children being created as a result of these experiments is also interesting. If this is true, and not some delusion, it means that our species are sufficiently compatible genetically that they can interbreed. Again, this points to very similar origins for our two species. Either the aliens come from a planet that is very earthlike or humans and aliens are descended from the same ancestor (like homo sapiens and neandrethal man).

Anal Probes and Alien Abductions

Alien Abductions
Alien Abductions | Source


The purpose if this article is not advocate that aliens exist or that they kidnap people and subject them to anal probes. I am a skeptic and frankly I find many accounts preposterous. But if we assume for the purposes of this discussion that the eyewitness accounts are true, what can we conclude about our anal probing visitors?

One thing we can be certain of is that if Grey aliens exist they are intelligent predators with superior technology and they occupy the same evolutionary niche as us. They are adapted to live on an Earth-like planet. This means that if they have hostile intentions, the aliens may covet this planet as a future home for their species.

Thanks for reading my hub about aliens. Please post a comment and let me know what you think.

© 2008 Robert P


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    • quotations profile imageAUTHOR

      Robert P 

      12 months ago from Canada

      Thanks for your comment. Your encounter is fascinating. Have a look at the books by Jacques Vallee, a scientist who suggests that these creatures are extradimensional, which would explain some of their behavior.

    • profile image

      Shireen helps 

      12 months ago

      You have used a lot of thought which is refreshing. I suggest that these Aliens, if that is what they are, have evolved beyond their planet to live solely in space. I do suspect there is a degree of genetic engineering to allow them to thrive in such a way.

      At the age of 6 years old I had an encounter with one of their machines. It was small so just a probe of some sort, but what technology!! It had no visible means of propulsion and being some kind of lense on a stalk, shouldn't haver been able to fly, but fly it could at incredible speed when it took off. Somehow whoever was behind it could talk through it telepathically and told me not to be afraid in such a way my fear was taken completely from me. I still remember it very vividly at 67 years old.

    • AtalKhare profile image


      3 years ago

      Nice Article

    • profile image


      3 years ago

      One night, three gray aliens stood at my bedside and I was unable to move. It's as if I was paralyzed. I could hear them talking among themselves even though they never spoke. they just stood there studying me for what felt like an eternity. I wanted to scream and I couldn't. I was very aware that they were willing me to remain totally still with only their minds. They finally left and they did not return to my home there. The second time I saw them they kept me from moving on my own but they dragged me down a hallway and I can vividly remember my arms stinging as I was being dragged. For some reason they stopped dragging me and left me at the end of the hallway. The next morning when I told everyone what happened they all laughed at me. They laughed and laughed until they noticed the horrible rug burns on my arms.

    • quotations profile imageAUTHOR

      Robert P 

      8 years ago from Canada

      You may be thinking of the famous UFO sightings at Gulf Breeze:

    • quotations profile imageAUTHOR

      Robert P 

      8 years ago from Canada

      If the sightings and reports are real, we can tell that they are humanoids who use and are dependent on their technology. If Roswell and other accounts of crashed flying saucers are real, we can tell that even though their technology is very advanced it is not perfect. What are their weaknesses? I am not sure, but they are probably many of the same as us: bullets, explosives, bacteriological weapons would kill them. The trouble is delivering these weapons past their technology. Their craft as super fast, and capable of stealth far superior to any fighter aircraft we have. The aliens are probably most vulnerable when they are on the ground.

    • profile image


      8 years ago

      What I want to know is do they have any weakness that help to mute the tech advantage they have.I used to tell my squad mates "all God's creatures bleed". We need to learn to do just that. An entity that abducts and causes pain to the unwilling needs to be violently dealt with,IMHO.

    • profile image


      8 years ago

      MY brother says there is a city in Florida known to have aliens visit it. Is this true????

    • profile image


      8 years ago

      yes they are here and just watching on us on the earth greys come to earth I have proof and video, pictures but im afraid to upload on you tube so wait for dec 31 or 21 2012 they are real belive me people on the earth peace on the earth why wars why why make peace love AND nice life why fight why why for what for nothing !!!! BELIVE ME PEOPLE ON THE EARTH THEY ARE HERE JUST WATCHING TO SEE TIME TO SHOW US AND THEY MAKE CONTACT

    • Alienufonews profile image


      8 years ago from Mars

      Iv'e seen a UFO and some alien like creature on the side of the turnpike. I do believe aliens exist. To prove that and add to your theory, visit , it has a bunch of stories and videos. BTW, nice hub.

    • quotations profile imageAUTHOR

      Robert P 

      8 years ago from Canada

      Interesting analysis Jay. I have to disagree with you on the evolutionary issue, however. While a nose is good for smelling, and our eyes are good for seeing, etc - they are by no means the only way that these types of sense organs could work. We assume that these are the way they should be because all of our fellow humans look basically the same and most animals have the same set up. However this is an assumption based only on limited experience. In fact, even on earth there are many alien looking creatures at the bottom of the ocean and in caves, etc who look radically different than us even though they have many of the same sense organs. The point I am making is that even on our same planet, if the conditions are slightly different, you end up with very different animals adapted to those conditions. So for another planet to produce a species almost identical to us, that planet would have to be almost identical to ours in almost every way such as size (gravity), distance from their sun (for reasons of temperature. lighting) and even atmosphere. Change any of these factors and you would get an unrecognizable alien species. But if these reports are accurate then the aliens do look sort of like us, which does lead me to think that we do have a common ancestor in some way.

    • quotations profile imageAUTHOR

      Robert P 

      8 years ago from Canada

      They may or may not be able to stop wars and other evil from happening on earth. Even if they can, it does not mean that they want to or care. Don't forget that aliens likely have completely different values, emotions and motivations from us. They may be simply observing us in the same way that a biologist may observe the strange ways of the gorillas. We see them fighting amongst themselves, sometimes even killing each other. We could stop it but we don't, because that would interfere with our observations and frankly we don't really care if apes murder each other. In the same way, advanced ufo beings may consider us little better than animals.

      Or they may be the advance party surveying the planet for a future invasion, in which case the more mayhem and destruction we cause ourselves the easier their invasion will be.

      The fact that they do not help us does not prove that they do not exist.

    • profile image


      8 years ago

      If the ufo people exist, why don't they stop the evil on the earth. Jesus said to us, you are your brother keeper. When God came to earth he made it a point to heal people. He interacted with man kind. This is what makes the whole thing seem like a trick. They come, but no one is getting any help. When God was here, he aleast healed people. What would be the missions of the ufo people. Can they help the people in Hatti and other countries since our governments of the world won't? If they really exist, then their technology is advanced. Which means they can take care of the people in those other countries.

    • quotations profile imageAUTHOR

      Robert P 

      8 years ago from Canada

      @AREA51CLSS56 - Sorry but you need to phone home. LOL

    • profile image


      8 years ago

      Help me. I am trapped in Area 51. I want to go home. Please. Help me to go home to my home planet. Help me. Help. PLease.

    • profile image


      9 years ago

      I've always thought they could possibly be our future evolved selves. I mean WHO KNOWS where black holes lead to.. possibly to nowhere, or maybe an alternate universe, like maybe the alien that abducts you is actually you in another universe lol idk. Just some crazy thought that came to mind. Or they are just far more intelligent than we are, and are curious about the worlds around them(like we are, we just haven't got there yet). We may know our world and the solar system around us but we are just a little spec of this huge place that there is no true explanation to. I hope that one day in our future(if we do not destroy ourselves) that we will one day be able to travel other galaxies and planets, and hopefully make peace with ET contacts. that would be so kickass.

    • VENZKHVAM profile image


      9 years ago from Milk way galaxy, trying to find a more adventurous place in another galaxy with my great followers


    • profile image


      9 years ago

      ok another view for u all lets say god exists and he created us in his image he would create more than 1 speicies on more than 1 planet don't u think and thats why we look the same. view 2. the eyes are perfect for seing the nose is perfect for smelling eventually most inteligent speicies would eventually evolve to walk upright and have use of hands as its best praticaly. in order to make spacecraft u would have to have fingers to tie nuts and bolts so any alien who does come here would look quite simaler don't u think view 3. the aliens ARE our gods from the sky and created us in there image and have been watchin our evalutian since they finished the great pyramid. but then again what do i know just a little thought let me know what u all think

    • quotations profile imageAUTHOR

      Robert P 

      9 years ago from Canada

      @umuekempi I have no idea what you are saying, but it sounds profound :)

    • umuekempi profile image


      9 years ago

      They are of the image of glorious spiritual head being of complex building heart center temple house of manhood in air form appearance .

    • profile image


      9 years ago from Beijing, China

      OK, another alternative - that they actually live here on Earth in places like Antarctica and remote mountainous regions. There are Google Earth photos of alien bases, well, the entrances to alien bases (66deg 36min 16.49S, 99deg 43min 03.31E) and in surrounding areas there are strange structures which are definitely NOT normal antarctic pre-fabricated huts that out scientists use. Don't believe me? well check it out then.

    • profile image


      9 years ago

      Quite interesting writing you have. I'm sure you are aware though that not all is as complicated as many are lead to believe. There is many false leaders, many attention seekers.. The possibility of having an absolute answer is near impossible. The only way to find out, is to wait and see for yourself.

    • rafken profile image


      10 years ago from The worlds my oyster

      Good hub, interesting points. It could link up to some of the theories that in our ancient past aliens mixed their DNA with ours. Perhaps they keep coming back to check how we are doing. Perhaps they are hoping that we can develop an immunity to some decease that they face on their home world.

    • iphonecarkit profile image


      10 years ago from Las Vegas, NV

      Remember, the short gray's are bad and the tall blue's are good.

    • profile image

      Ancient Astronauts 

      10 years ago

      This is a very interesting subject. I think the origin of aliens isn't as mysterious as what role they have played here on Earth. If we further evolved in deep space while spending most of our life in starships, our bodies would also slowly change over time to acclimate our selves to less gravity, radiation in space, less activity, and so on.

      On the other hand, towards the end of this article, your frequent use of the terms "anal probes" when speaking about our anal probing visitors, not only brought humor to the subject but also made me wonder about these mysterious techniques used during alien proctology. LOL! Just kidding about the last part...

    • steve8miller profile image

      Steven Miller 

      10 years ago from Ohio Great City of Dayton

      Very well setup site here, I like it. I can learn from you. I follow a similar line than you, I just tend to answer these questions.

    • Admiyn profile image


      10 years ago from Brazil

      Interesting. Do you think there is some alien hidden in 51 area?

    • Nell Rose profile image

      Nell Rose 

      10 years ago from England

      HI, I was thinking that maybe they come from either our future, and this is what we will look like thousands of years from now, or maybe another dimension not another planet? That is why they come and go so easily, Maybe the fairies from folk lore have gotten futuristic! We have evolved to drive cars, planes and trains etc, why shouldn't they? well it is a thought. thanks cool hub. Nell

    • quotations profile imageAUTHOR

      Robert P 

      10 years ago from Canada

      umkeyra - you make an interesting point. In my article I explored the possibility that if aliens exist some of the ones that have been described look similar to humans which suggests that they are either descended from humans (or the other way around), evolved on earth (but later emigrated to other worlds), or come from a very earthlike world so that their evolution was similar to ours. But if I understand your comment correctly you are suggesting another alternative: namely that the aliens that have been reported are really alien-human hybrids and that they really come from earth. Interesting idea.

    • profile image


      10 years ago from Beijing, China

      Yes, the aliens may come from somewhere else, but on the other hand, they be like us because they live on our planet. Many government military witnesses say (The Disclosure Project) that they have worked with them here on Earth, so it is quite possible that they live in military or underground bases. If they were evolved from these human/alien hybrid experiments then they would look similar to us wouldn't they? Possibly these are the people living on the Moon????? (but that maybe pushing it a bit far or is it?) See this official NASA photo.

    • profile image

      nola restoff 

      11 years ago

      Very interesting thread. Thank You. They also seem to look like the aboriginal paintings in australia - wadjinees

    • kappa022 profile image


      11 years ago from Florida

      Very insightful hub, I definitely enjoyed reading it.


    • quotations profile imageAUTHOR

      Robert P 

      12 years ago from Canada

      Thanks for the feedback Maylinda. I am sure that if we ever captured an alien our scientists would subject it to all kinds of inhumane experiments.

    • Maylinda Arons profile image

      Maylinda Arons 

      12 years ago

      wow, this is a brilliant hub. wow. Seriously. I'm reeling from the coolness of it all. I do think, though, that even if they did abduct unwilling humans for tests, this might be for convenience. Maybe they didn't want to be found out and shown on national television just yet. I believe most accounts state that their memories were wiped, and brought out only under hypnosis. Maybe these aliens had some reason to want to not be discovered, and even though they abducted people, I believe the accounts state that they were quite humane.

    • Bard of Ely profile image

      Steve Andrews 

      12 years ago from Lisbon, Portugal

      Very interesting hub on a subject I have been fascinated by since I was a teenager which was a very long time ago.

    • Woody Marx profile image

      Woody Marx 

      12 years ago from Ontario, Canada

      Very interesting information! I enjoyed every word of it! :)

    • quotations profile imageAUTHOR

      Robert P 

      12 years ago from Canada

      Thanks of the comment G-Ma Johnson. I tend to think that aliens do exist. It would be strange if there were so many billions of stars and planets but no life on them. I am not sure if any aliens have aver visited us, however.

      I find the descriptions of the Grey aliens fascinating. If they are real, then there must be some sort of common homeworld for aliens and humans because I can't imagine that two species would have evolved so similarly on two different planets. On the other hand the fact that the aliens are described as being so human-like leads me to think that the sightings are not really of aliens and people are either imagining things or misinterpreting.

    • G-Ma Johnson profile image

      Merle Ann Johnson 

      12 years ago from NW in the land of the Free

      Very interesting.....I have no answer to offer.....but am inclined to believe they do exist. G-Ma:o) hugs


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