Why do aliens have big eyes

Because cephalopods share our camera-type eye, it was assumed that their meager one color receptor must condemn them to a life in black and white. This year, that assumption was challenged. Father-son team Stubbs and Stubbs put forward a new hypothesis: that the single color receptor present in the eyes of octopus, cuttlefish, and squid is not as limiting as our preconceived notions had led us to believe.

It fact, they argue in their study, it might be an advantage for the sneaky underwater predators. Color vision loses its usefulness in low-light environments, which characterize most of the ocean. Cuttlefish are particularly good at perceiving polarized light, able to respond to little over a one degree shift in its orientation.

Instead, the new study has discovered a third possible method of light perception — one that would explain those weird W-shaped pupils. The Stubbs duo believe that cephalopods could be taking advantage of a natural phenomenon called chromatic aberration, which blurs images while splitting white light into its component colors. While most animals have developed small pinpoint pupils for a crisper image, this new study indicates that cephalopods might have turned a fault into an asset, emphasizing the color-dependent blurring effect by having elongated, off-axis pupils.

Along with the perception of polarized light, this could be the optimal strategy for discriminating between colors in either high-light or low-light conditions. Scientists can be forgiven for assuming that cephalopod eyes would follow the same basic mechanism of human eyes, and would be limited by the same set of rules. But it could be time to rethink this assumption, and to accept there might be more to cephalopod vision than meets the human eye. Those are the craft I remember seeing through the regressions.

NOVA: Could you briefly describe how an abduction experience typically begins. The early stages, when you know something's going on. How do you feel physically? The room will just be flooded with light. Or there'll be this humming background, humming sound and an almost electrical feeling to the air. And then I'll either begin to feel very, very heavy—as if I weighed ten thousand pounds, or frozen, immobilized.

At that point, usually these little beings—the grays I described—they'll enter the room. And they'll take me on board a craft. Not always, but most times there's a physical check-up or a procedure that's performed. They have taken semen samples from me. They have implanted devices of unknown purpose and origin into my brain and into my body. And there's usually some kind of communication is done, during the abduction. I've been shown apocalyptic visions of the destruction of the earth, the results of all our pollution and raping of the planet: floods, fires, disasters of every imaginable kind.

I think what they've been showing me are the results of our interference with the natural order in the world. And that's pretty much thematic of the abduction experiences. NOVA: Talk about the beginning of the abduction experience. I was coming home one evening. I saw a strange light over a building. It disappeared behind the roof line. And I remembered, as I walked down the block, being very frightened and paranoid, feeling like something or somebody was going to jump out of the bushes and either mug me or hurt me in some kind of a way.

And when I got 10 or 15 feet away from the entrance to my house, there—the house that I lived in had these low hedges in front. From behind the hedges, three or four of these little beings just walked out onto the path in front of me, where I could see them. And my first reaction was confusion. I didn't know what I was looking at. I was wondering if they were some kind of animals maybe, or skinned cats or something.

I couldn't figure what I was looking at. And when the realization dawned on me, that these things were not human beings, panic set in. And it's so intense that it takes your breath away. You can't breathe, you can't move. I don't know if the immobile—if the feeling of being immobilized is some mind control on their part, or if I was just so paralyzed from fear, that I couldn't move.

But usually the first few moments of these experiences involve initial confusion, then shock, fear, terror. And then this calming comes over you. You just get very calm. And a feeling of recognition. I remember having seen these things before and all the fear just kind of washes away. NOVA: Have you ever had an experience where you remember trying to struggle or cry out?

And if so, what happened? There's two. I was taken from my bedroom one night. And I was being carried out of the house. And these beings have the ability to literally walk through walls, doors, solid objects. I don't know if it's some kind of a mechanism, or whatever it is. But they have the ability to pass through solid objects. This month, the extraterrestrials from the "Alien" film series return to terrorize film audiences in "Alien: Covenant.

Even non-fans of science fiction these days can recognize what is supposed to be styled as an "alien," to the point where the telltale signs of a creature from other worlds have become somewhat expected. Read more: Dark obsessions of the world's most extreme collectors. So, why do different aliens look the way they do? And what will they look like in 20 years?

Below is a look at the art and design of some of film's most memorable extraterrestrials. An alien by any other name is an artist. Giger with the alien costume from "Alien. Originally hired in by Alejandro Jodorowsky for conceptual work on an unproduced cinematic version of "Dune," artist H.

Giger was instrumental in creating the disturbing design for Ridley Scott's "Alien. Yet the material evidence for contact itself is overwhelming and can discounted as simply creating a bizarre belief to understand an individual phenomenon.

There is too much collective evidence to the contrary as Dr Mack himself, a previous sceptic, discovered. I was definitely abducted by aliens several times in the late s. I actually remember this happening on one occasion and for many years I thought my memory of this event was a dream. At around the same time I frequently experienced a strange and rather frightening sensation when lying in bed at night.

The air in my bedroom would take on a different texture and seemed to be charged with static electricity. I did not like this feeling and would fervently wish that it would go away and always went to sleep waking up in the morning feeling perfectly normal. I was aged around 16 or 17 at this time. I was able to see the ground underneath us as the bottom of the saucer appeared to be transparent. Pastor Forrest, I have stopped going to church till I truly get some answers for missing time - 12 hours of it.

Benson county TN. Rented a small cabin for fishing trip, three of us. The last thing we all saw was what we thought was a fish was turning into a fish much bigger than our boat, then 10pm at night we where many miles away and none of us remember anything at all. We still don't talk to anyone about it. None of us see or talk to each other any more. All divorce, just don't know anymore.

The Pheonix lights had thousands of witnesses though. I suggest watching some other videos regarding this phenomenon. Policeman Alan Godfrey's encounter for which he was mocked for talking about or Kelly Cahills encounter are both on YouTube. There's more to this subject than simple delusion in my opinion.

The entity paralysed me as if i was hit with a pause button on a remote control. I was microchipped that night while abducted in my bedroom. The next day I could not use my arm the mobility was gone in my wrist. The pain was very intense and lasted 2 weeks.

It felt like I had a blood clot in my wrist. They're not taking one at a time no more I was on a bus people United States California tell me what city to verify truth Thank you. The last time I believe that I was abducted I believe I was 17 and I fought with them because I heard everything that they were doing to me and I woke up on a stone table.

Ever since then I believe that I have been able to keep my children since then I've been allowed to have 5 children since then. Recently I woke up to my husband going into the shower and I watched him going to the bathroom and then I turned over and while I was turning over I saw one of them it was then walking around my bed and he started to watch whatever I had on TV.

In less than a second. My husband always has night terrors which in his life time I don't even understand why he should even be having night terrors. Maybe I'm in sane.. But I saw it.. It knows I saw it.. Because i saw it turn to me when I said WTF.. I do not know what's happening. I just know it knows I know. I hope it was a bad dream. It knows that even in my sleep I can fight it. Or at least I hope. Marco Rubio just submitted a request from the government on UAPs.