Original subtitles

NARRATOR: Giants...

MAN: They found up to 40 or 50 people

inside this cave.

One was allegedly 7 feet, 7 inches tall.

NARRATOR: Grey-skinned creatures...

An essential humanoid,

but with disproportionately large heads

and huge black almond-shaped eyes.

NARRATOR: And beings with god-like powers.

This was a person who was a little more than human.

NARRATOR: Throughout history, there have been stories

of strange beings and fantastic creatures.

But could they be more than just myth?

TSOUKALOS: In my opinion, these people were misinterpreted

flesh and blood space travelers.

NARRATOR: Millions of people around the world

believe we have been visited in the past

by extraterrestrial beings.

What if it were true?

Did ancient aliens really help to shape our history?

And if so, might we find proof

by examining the faces of the gods?

Cahuachi, Peru.

Two-thousand years ago, this ancient settlement

served as the religious and cultural capital

of the Nazca people.

But sometime around 500 A.D.,

the Nazca mysteriously disappeared,

leaving Cahuachi to fall into disarray.

1,400 years later, in 1910,

anthropologist Ales Hrdlicka came to Cahuachi

to study the ancient Nazca civilization.

During a dig, he unearthed some of the most surprising

and shocking artifacts he had ever seen.

They were skulls...

with enormous elongated craniums.

Where did they come from?

How did they get there?

And were they human?

CHILDRESS: In Peru, we find these weird elongated skulls,

and they're bizarre-looking.

I mean, and these people look like aliens.

SCHOCH: One may say, "OK. Aliens."

But another aspect that we have to consider

is that skull and cranial deformation,

forming elongated heads, is a practice that's known

throughout much of the ancient world.

NARRATOR: In 1870, the process of skull deformation

was well chronicled by a German botanist and explorer

named Georg Schweinfurth.

While exploring the African Congo,

he came in contact with a tribe called the Mangbetu.

They routinely performed a ritual of cranial binding

that allowed them to physically alter the shape of human skulls.

CHILDRESS: They took infants' skulls

and compressed them and bound them,

and they forced the cranium out and elongated,

and in many cases, they doubled the size.

SCHOCH: And a big question is why was this being done?

It may have been a way to distinguish the elite perhaps

from the everyday people.

It may have been a social stratification type of issue.

Something that also appeals to me

is that it may have been a way to express physically

and maybe try to achieve physically

greater levels of consciousness

or higher levels of mental ability.

TSOUKALOS: In my opinion, they did this

in order to mimic the gods,

and those gods were physical beings

because if they were just a figment

of our ancestors' imagination,

I don't think that's a compelling enough reason

to expose your children to such a ritual

to achieve that type of look, and in my opinion,

these people were misinterpreted flesh-and-blood space travelers.

SCHOCH: Some people have suggested

aliens had elongated skulls, and apparently ancient peoples

are mimicking those skulls.

The old saying is that imitation

is the sincerest form of flattery.

NARRATOR: Although there have been many images

that attempt to depict what aliens might actually look like,

one in particular has come to dominate the public perception.

It, too, features an elongated cranium

and is associated with an extraterrestrial race

that many refer to as the Greys.

POPE: In terms of entities,

one very common description are the so-called Greys,

3 1/2, 4 feet tall, essentially humanoid,

but very spindly with disproportionately large heads

and huge black almond-shaped eyes.

NARRATOR: But would someone in a primitive society

really want to replicate this look and deform their skull?

Some archaeologists have a different perspective.

They point to artistic self-expression

as an explanation of these customs.

There are all kinds of people that...

that either worship the body or use the body as art,

be it a tattoo or a piercing of some sort

or tribes that put things in their ears or in their lips

to try to grow parts of their body.

Some societies we know practiced binding parts of the body,

feet or heads, and try to make certain shapes,

and this was done for whatever reason.

We know today that this isn't usually

the most healthy thing to do,

but it doesn't mean people don't do it.

People are always trying to change their body

to make it look a certain way.

NARRATOR: Whatever the explanation may be

for these rituals, they are not just found

in Peru and the African Congo.

NARRATOR: Skull deformation is a global phenomenon.

CHILDRESS: What's really strange

is that this is found all over the world,

and this is something

that archaeologists cannot easily explain

because for people on remote islands,

for people in South America or Malta or in Africa

to suddenly independently do

this cranial deformation like this seems incredible.

I mean, this is something that had to be learned,

something that was taught to them.

SCHOCH: We seem to have basic similarities,

as if there was one civilization

or at least one type of culture

that was influencing people around the world.

I find it more and more difficult to believe

what I was taught as an undergraduate,

that all these different cultures

just coincidentally came up with the same concepts

independently of each other.

NARRATOR: Could it be that the elongated skulls

found throughout the world are really the result

of ancient humans trying to emulate

the appearance of other-worldly visitors?

Or could they really be the skulls of extraterrestrials?

Ancient astronaut theorists believe further clues

can be found by examining other strange bones and relics,

relics that may provide proof of giants.

Lovelock, Nevada. In the early 1800's,

local legends passed down by the Paiute Indians

told of a race of giants

who were exterminated by their tribe.

It was said this was done by trapping the giants in a cave,

shooting arrows at them, and then starting a large fire

at the mouth of the cave.

Evidence of the slaughter lay undisturbed

until the early 20th century.

CHILDRESS: Lovelock Cave was first discovered

by local ranchers who were looking for bat guano

to use in their fields.

NARRATOR: In need of fertilizer for their crops,

the ranchers removed nearly 10 feet of guano-enriched soil

from the surface of the cave.

CHILDRESS: And then they began finding human remains.

They found up to 40 or 50 people inside this cave.

One was allegedly 7 feet, 7 inches tall.

They all had long red hair and were literal giants.

NARRATOR: If these skeletons were the remains

of the legendary Red Haired Giants,

were they visitors from distant continents?

CHILDRESS: Throughout the 19th century,

many giant skeletons were allegedly discovered

in the Midwest, also in parts of California

and around Death Valley,

and the skeletons here found at Lovelock

are one of the few that were really excavated

by an accredited university.

NARRATOR: Archaeologists from the Nevada Historical Society

and the University of California

believe the cave was occupied from approximately 1,500 B.C.

until a few hundred years before white men appeared

in the Nevada territory.

75 miles from the cave site,

a local museum has preserved several skulls

that some believe are recovered remains of the giants.

CHILDRESS: Inside this cabinet here

are 3 skulls from the Lovelock caves.

When you first see these skulls,

they seem to be pretty much normal-looking skulls.

However, it's when we really start to compare the jawbones

with this modern dental impression

of a normal adult male that we see that

these jawbones are unusually large,

and these are really the skulls of giant people

who were perhaps 7, even 8 feet tall.

One of the odd things with these skulls

is that they're not actually put on display here at the museum,

and they're kept hidden in this cabinet.

Now, we don't know if that's really just out of, um...

respect for the Native Americans

or whether there's really something unusual

about these giant skulIs that they don't want them to display.

NARRATOR: Are the Nevada bones evidence of a race of giants

that existed all through early human history?

If so, could the giants be

the descendants of extraterrestrials?

According to the Hebrew Testament,

one such giant appeared in the Valley of Elah

2,500 years ago.

Each morning for 40 days,

a Philistine giant over 9 feet tall

challenged the Israelites to a fight.

His name was Goliath.

David and Goliath is one of those episodes in the Bible

where you wonder what is going on.

Is it just a metaphor,

or are we dealing with a fundamental interpretation?

And in that sense, Goliath has to be a giant creature.

The question then is, he cannot be human.

What is he?

NARRATOR: David's stunning triumph over Goliath

was considered a mere fable

until archaeologists turned up evidence that suggests

this confrontation really did happen.

On the outskirts of Tel El-Safi, Israel,

scientists discovered a moat

that may have once protected the Philistine fortress.

Nearby they found shards of pottery

inscribed with the name Goliath.

Tests indicate the pottery is from the same time period

as described in the Bible.

Ancient astronaut theorists claim

this is unmistakable evidence of extraterrestrial giants

in Biblical times.

COPPENS: Are we dealing with metaphors,

or are we dealing with hard evidence?

Are these physical creatures which somehow roamed the Earth?

And I think on volume,

We have to accept that some of these were real.

The question then is how did these genetic freaks come about?

TSOUKALOS: One of the main tenets

of ancient astronaut theory suggests

that a long time ago, extraterrestrials

changed our genetic makeup through a targeted mutation

of our genes, essentially in the lab.

So they took a couple of human beings,

altered their DNA, then reinserted those people

back into the population, so through procreation,

those people would pass on those new genetic alterations

to the entire population.

NARRATOR: Ancient astronaut theorists suggest

the evidence points to one conclusion--

that aliens changed the genetics of early human DNA.

COPPENS: For an alien being to work with DNA is so easy

that just creating a new type is not at all that difficult.

Even today we have the capability

to create new types of animals.

The question is, were we created as such as well?

NARRATOR: Did giants really walk the Earth

thousands of years ago, and if so,

could they have been from another world

or perhaps the result of alien experimentation with human DNA?

Perhaps the answer can be found by examining the stories

of yet another type of other-worldly being--

winged creatures that descended from the sky as angels.

[Bells tolling]

NARRATOR: Rome, Italy.

Stored in the treasury of St. Peter's Basilica

is the Vatican is the sarcophagus

of Junius Bassus.

Constructed in 359 A.D.,

the sarcophagus features what some believe to be

the earliest known depiction of winged angels

in all of Christianity.

In the centuries that followed,

angels were almost always depicted as having wings.

But Why?

Especially since the actual Biblical texts

rarely describe angels as having birdlike appendages.

CARTER: The vast majority

of the stories in the Old Testament,

angels aren't described as having wings at all.

Some of them, they look human.

When the angel comes to visit Abraham,

this angel does not have wings. He looks like a man.

Abraham bows to him, which is interesting.

How did Abraham know?

If he looks like a human being,

what was it that gave Abraham the clue

to run over and bow down to him?

And so there's a supernatural quality,

there's a superhuman quality that they acknowledge

that this was a person who was a little more than human.

RADER: The concept of the angel as such

comes directly out of the Greco-Roman tradition,

stories of Hermes and Iris kind of coming down

and giving messages.

Envisioning them as beings, like human beings,

kind of looking like human beings

and being benevolent.

There are plenty of other beings

which have these beautiful wings,

these kind of forms and shapes,

but all of these beings, however they are conceived of,

are a way of telling us

that we have a hard time understanding

what it is that separates us from them, from the gods.

They have to be these kind of weird beings who have wings.

MARTELL: Angels show up in various cultures

as probably misidentified technology.

If they saw someone, a human being or a humanoid,

flying in the skies, they could only give it a natural review,

giving it wings.

I don't think they actually had wings.

It was ancient man's way of saying

they had the power of flight.

CARTER: The angels have wings that we're used to seeing

depicted in pictures of the Bible and what have you,

and basically the wings say these beings can fly.

So we believe in angels,

and the Native Americans talk about the star people.

The Egyptians talk about the gods

coming to and from the Earth.

So I believe this is the basis, this is the template

for the civilizations of the Earth's religious practices.

I believe that.

For centuries, religious tradition

has perpetuated the notion of birdlike wings

to explain an angel's mode of travel.

But is such a concept even scientifically plausible?

[Bells tolling]

In 2009, a study at University College London

compared classic depictions of winged angels

with actual bird physiology.

DENNIN: You have to be able to both flap down and flap up,

and you really need a separate muscle to do each of these.

On the way down, you're generating the lift,

and you actually have to rotate the wings slightly

and get a different angle as you come up,

and then they actually generate their thrust.

Otherwise, if you just went up and down

in the same straight pattern, you'd be making lift one way,

but when you went back the other way,

you'd just push yourself back down.

So when you look at the classic pictures of angels,

the wings are centered on their back very close together,

whereas the birds, with the wings on the side,

can have longer muscles with great strength

that go into moving them up and down.

With the wings on the back, they're gonna look like

they're gonna flap more like this than up and down.

NARRATOR: Researchers also concluded that angels,

given their humanoid interpretation,

would be simply too heavy for flight.

DENNIN: We're not designed aerodynamically,

and we're quite heavy.

I mean, we're solid bone, solid muscle.

So those two features you have to overcome.

NARRATOR: But if angels could not have possessed actual wings,

how would they have managed to travel to and from the heavens?

Angels were never described to fly around like Superman,

but they sort of had a vertical ascent into the sky,

or when they descended, it was a vertical descent.

How was that possible?

NARRATOR: In 1953, Bell Aerosystems developed

the rocket belt, the precursor to today's workable jet pack.

Designed to lift individuals vertically into the air

and glide them across the skies,

today's jet packs can reach altitudes of over 8,000 feet

and travel at speeds of up to 60 miles per hour.

TSOUKALOS: If you look at a modern jet pack,

humans are ascending and descending

in a vertical position.

Now, imagine if that picture was shown to our ancestors.

How would they react?

Obviously they will say,

"Wow. This creature must be divine.

"This creature must be some type of a god

"because they've got the capability of flight.

"They're like birds.

Not even the sky is the limit to them."

NARRATOR: Did our ancestors try to explain

an ancient alien technology by suggesting

that extraterrestrial visitors were heavenly visitors

with birdlike wings?

If the answer is yes,

the implications are both profound

and potentially disturbing.

For if angels are actual visitors from other worlds,

then what is their mission?

Are they simply watching us, or is there perhaps...

a more sinister purpose?

Oaxaca, Mexico.

Situated on a low mountain range rising above the central plain

lie the ancient ruins of Monte Alban.

Here, around 100 B.C., researchers believe

the Zapotec Indians worshipped a bloodthirsty Mayan god

with the body of a man and the head of a bat.

They called him Camazotz.

The iconography is rather striking,

the image of a half man, half bat,

a man with the head of a bat and wing-like cloaks spread out

with crosses of bones in the lining.

The Zapotec people in the Oaxaca area of Mexico

believe that winged creatures, bat-like creatures,

come in the night.

They will attack, and they will drink blood

and disappear without ever being noticed.

CURRAN: This is simply a sort of anthropomorphic bat

which was worshipped by the sacrifice

of libations of blood.

So what they did was they cut themselves

and poured it into a bowl and offered it to the god.

WYATT: Blood was a very important substance to the Maya.

That is what gave humans life-- blood and breath...

was what the essence of life was.

That's where this "kahul," this divine essence resided,

in blood and in breath.

When you would die, you entered into the underworld.

It was called Xibalba.

Then, if you defeated the lords of death,

you would then ascend into the heavens

and become one of the revered ancestors.

The blood is the thing that reconnects

the world that we live in with the world of the dead.

Some of the earliest archaeological evidence

shows that blood rituals were present

as far back as we can search.

NARRATOR: Legends and myths of supernatural beings

with traits similar to vampires

are a part of nearly every ancient culture.

In Hindu folklore, for example,

the Vetala was known as an evil spirit

that took demonic possession of corpses.

The Indian goddess Kali was also intimately linked

with blood sacrifices.

CURRAN: Kali becomes The Destroyer,

and she is portrayed as a hag-like woman

with a whole number of arms...

Each carrying a sword.

She is the goddess of death and destruction.

Her eyes are red, and she drips blood from her mouth.

She's known to take infants from their crib

and drink their blood.

NARRATOR: In North America,

early Cherokees believed in a bloodthirsty creature

that slaughtered humans, drank their blood,

and ate their livers, known as the U'tlun'ta.

This demon was said to possess eternal life

while feeding on the living.

The notion of the thing from the spirit world

traveling through the various Indian nations was a great fear

among not only the Cherokee but also the Sioux and Arapaho.

NARRATOR: But who or what are these mysterious creatures?

And where did they come from?

Might they be, as ancient astronaut theorists believe,

extraterrestrial beings abandoned here on Earth?

In the ancient Jewish Talmud,

the Genesis story set in the Garden of Eden

includes Adam and Eve but also a woman called Lilith.

SKAL: In Jewish folklore,

Lilith was the first wife of Adam.

She was created from the same earth as Adam,

not from his rib, as Eve was.

But she proved to be very disobedient and uncontrollable

and had to be banished.

NARRATOR: According to the Talmud,

when Lilith refused to obey Adam,

God sent 3 angels to convince her

to submit to his authority,

but when Lilith refused for the final time,

God condemned her to live on Earth for eternity.

SKAL: In a sense, Lilith was

the first vampire to wander the Earth.

She shared all of the characteristics

of female vampires.

YOUNG: Lilith had the head and breasts of a woman,

the body of a snake, and the wings of a bird.

She's a terrifying creature.

COOGAN: In Jewish tradition,

Lilith has been a kind of night demon

against whom incantations and prayers have to be offered

because she will come and snatch away

an infant sleeping in its crib

or at least snatch away its soul and cause it to die.

NARRATOR: But why are tales of bloodsucking creatures

so prevalent throughout the ancient world?

Might blood and the unique chemistry of it

serve as a kind of cosmic fuel,

one that connects the living to the dead,

the human to the inhuman,

the earthly to the other-worldly?

CHILDRESS: Blood is the life force of humans,

and it was very important to extraterrestrials, too.

And there are some things very special about our blood.

So we have to think that if these blood sacrifices

aren't some distortion of what was originally...

just extraterrestrials showing us

how important our blood was.

NARRATOR: Angels, demons, the Greys...

are they all various interpretations

of one type of extraterrestrial species,

a species that has been visiting our planet

for thousands of years?

Or are they descriptions

of several different alien visitors?

Ancient astronaut theorists believe

further clues can be found by examining

the ancient Greek stories of fish people.

Cape Sounion, Greece.

Perched on the headland,

surrounded on 3 sides by the sea,

lies the ruins of the temple of Poseidon, built in 440 B.C.

The second son of the Titan king Cronus,

Poseidon was worshipped throughout Greece,

almost as much as his younger brother Zeus.

Poseidon was the god of the sea.

He was also the god of earthquakes

and strangely, horses.

When Poseidon was in a good mood,

he created new lands out of the sea,

he gave calm waters for good voyages.

When he was in a bad mood,

he destroyed ships and brought storms.

[Thunder]

RADER: Poseidon does rule over the kingdom of the sea.

It is envisioned as a kind of a place where people live,

and when he comes out of that place,

yes, he rides this spectacular kind of like water chariot

that is driven by dolphins,

and he holds onto a really big trident.

NARRATOR: In Greek mythology,

Cronus eats all of his children except for Zeus,

who eventually rescues his siblings, including Poseidon,

from the belly of his father.

YOUNG: A potion is prepared

that makes him heave up all the other siblings of Zeus,

and these become the gods of Olympus.

NARRATOR: But ancient astronaut theorists

believe this Greek myth is actually a metaphor

for an extraterrestrial event.

They believe the notion

of gods being vomited up from the belly of their father

actually describes mutinous aliens

being expelled from the mother ship.

Any being which is swallowed up into a living creature

will not be able to survive for 3 days.

It will die from suffocation and will begin to decay.

Now, what we have here is not a creature,

but something else.

It could have been an object

which was clearly of a man-made or extraterrestrial origin.

A mutiny took place.

Some of the extraterrestrials, they had sex

with wonderful earthly females, women.

They were not allowed to do this.

So one of these extraterrestrials

who were not allowed to go back with the mother spaceship

had the name of Poseidon.

Poseidon fell in love with a beautiful human girl,

and he made her pregnant.

RADER: Poseidon is married, right? He's got a child.

He's got some grandchildren, right?

There's the whole cast of sea nymphs as well.

All of them presumably, like, live in this place.

YOUNG: Poseidon has the power of the deep,

the unseen place.

If you look out at the sea, you see a surface,

and you're aware there's a whole world below that,

suggesting powers beyond that which meet the eye.

NARRATOR: Among the mythical creatures

associated with Poseidon

are the Telchines, a race of advanced fish children.

These human-like beings could live both in and out of water.

They are masters of technology

and seem to match up with the fish gods of ancient Sumeria,

who worked for Enki,

the great god of alchemy and technology and smithcraft.

RADER: The Telchines are also kind of

in this shadowy territory of God/human/monster things.

They're just these kind of figures

who are not gods but were like human beings.

There's one story about the Roman version of Zeus, Jupiter,

trying to destroy them.

Now, we don't know whether they are actually all destroyed,

but it's possibly because of their relationship to the magic.

NARRATOR: In Greek legend,

the Telchines were also metallurgists.

They were said to have created Poseidon's magical trident

and to have cast the first bronze statues

of the gods of Olympus.

And according to some historians,

the Telchines may not have been creatures of myth,

but were beings who actually existed.

RADER: There were people called Telchines.

We do actually have evidence of these beings.

They were an actual ancient race

who had specific tasks and trades,

like metallurgy, like smithing, and so on,

and so you could see how it is that a being like Telchines,

that these things could, in fact, not just be

these mythological beings, but, like, actual people.

So the way that we look at the ancient Greeks and Romans

would have been the way

that they would have looked at the stories

that are being told about the Iliad.

TSOUKALOS: We've got the stories of the Telchines,

and they were able to survive underwater

for unlimited amounts of time.

Now, how is such a thing possible

unless you have access to some type of technology?

An Israeli company is currently developing

a human artificial gill system that allows humans

to take oxygen from surrounding water

without the need of oxygen tanks.

You potentially can remain underwater

for unlimited amounts of time.

All the technology that we are discovering today

is, in fact, old news.

It's been around before.

NARRATOR: Could the ancient Greek myths

really be based on actual events?

And if so, were the Telchines early humans

in possession of alien technology,

or could they themselves have been other-worldly beings?

Perhaps the answer can be found

by exploring the Middle Eastern stories of shape shifters

known as the jinn.

Temple Mount, Old City Jerusalem.

It was here that many Biblical stories reportedly occurred,

including the binding of Isaac from Genesis 22.

In this story, God asks Abraham to sacrifice his son Isaac

on Mount Moriah.

Abraham sets out to obey God's command.

But after binding his son and preparing for the sacrifice,

he is stopped at the last minute by an angel.

Conventional interpretations of the story usually conclude

that God only wanted to test Abraham's faith,

but ancient astronaut theorists suggest

the tale has another interpretation.

In my opinion, God God would never ask such a question.

So is it possible that it was

a fallen angel/ alien extraterrestrial

who posed as God?

RADER: God never demands human sacrifice.

Human sacrifice is totally anathema to Christianity,

and it's totally anathema to God as a creator.

The French philosopher Sartre very famously wrote,

"if an angel were to tell me I needed to sacrifice my son,

I'd ask for some I.D."

COPPENS: Maybe somebody else impersonating a god,

and do we then have somebody stepping in

to actually prevent this from happening?

Are we, in fact, maybe confronted

with two warring civilizations trying to control

what is happening in the stories of the Bible?

Just like there are good people and bad people here on Earth,

there's good and bad extraterrestrials out there.

Good and evil permeates the entire universe.

Yin and yang. There's a balance.

NARRATOR: Deep inside the Middle Eastern country of Oman,

a mysterious cavern lies hidden far beneath the surface.

Called Majlis al Jinn,

or "meeting place of the jinn,"

it stretches more than 14 acres underground

and is one of the world's 10 largest caves.

Many Omanis still believe this cavern and others like it

are actually inhabited by supernatural creatures

of Islamic folklore called jinn or genies,

mystical creatures that are usually invisible to man.

YOUNG: One interesting aspect of the jinns

is an element of free will.

They're like angels, but we think of angels in the West

as under the direct command of the divine powers.

But the jinn can make some decisions for themselves,

and some of them are a little contrary or curious

in their way of being.

NARRATOR: According to Islamic theology,

genies often reveal themselves to humans with messages,

which can be either benevolent or deceptive.

But is it possible that genies actually exist?

If so, where did they come from?

TSOUKALOS: When we talk about genie, genie in a bottle,

it's very interesting because you rub the bottle,

and then the genie comes out of it

and then fulfills your wishes.

Well, let's look at this from a modern-day perspective.

If you have a little container, and you push a button

and a hologram comes out,

then could that be a genie in a bottle?

And according to the ancient astronaut theory,

that is exactly what happened,

where extraterrestrials used holograms

in order to relay messages.

That is essentially a genie in a bottle.

NARRATOR: Like angels, jinn are said to be able

to appear and disappear at will

and are sometimes only heard as disembodied voices.

But while some ancient astronaut theorists believe

this behavior resembles that of extraterrestrials,

others claim that angels, jinn, and other supernatural creatures

have origins right here on Earth.

They call these beings ultraterrestrial.

Ultraterrestrials are possible beings

that travel and visit us from other dimensions.

We know that we all vibrate in the 3-dimensional space

at a certain frequency.

It's very possible that other beings vibrate

at a higher frequency and are able to pass

more easily into other dimensions.

The ultraterrestrial theory would also explain

the folkloric creatures, the angelic creatures,

any sort of experience of a strange, supernatural,

or alien being that's occurred throughout history.

NARRATOR: Angels and demons...

giants and genies...

did they actually exist,

and if so, could they have come here

from somewhere out of this world?

But Why?

Were they sent here to shape mankind's past

or its future?

Did they mean to do us harm or good?

Perhaps even more importantly, could they still be here,

living among us undetected?