From unexplained sightings of mythical and prehistoric creatures to UFOs; it's pretty safe to say that humans relish a good mystery.
And this bizarre footage captured in Idaho will surely whet the appetite of conspiracy theorists around the globe.
In the clip, which was captured by an amateur filmmaker, a huge bird-like creature flies across the sky over Boise, Ohio.
The bird-like creature was captured by an amateur filmmaker flying in the sky over Boise, Ohio
Its huge wingspan is immediately noticeable as is the distinctively large backwards-pointing crest, which protrudes from its skull.
As it glides through the sky with ease it flaps its wings a few times before flipping forward and looking towards the ground.
It then straightens itself back up and flies off into the distance and the video maker loses sight of it.
Zoomed in footage of the flight shows the bizarre creature up close and the claws attached to its wings - similar to a bat - are visible.
The huge wingspan of the creature was immediately noticeable as was its distinctively large backwards-pointing crest
However there are no more clues as to whether the footage is in anyway genuine.
As expected the video has received a number of comments from sceptical YouTube users since it appeared online.
User Hades wrote: 'Super fake the shadowing is off and the wing flap doesn't match up,' while melody06 said: 'Special effects.'
A number of skeptical people have taken to YouTube to dismiss the footage as being fake
YouTube user rasha singh offered a possible explanation by simply commenting: 'It's a bat.'
The Pterosaur, which means 'winged lizard', was a flying reptile and the earliest vertebrates known to have evolved powered flight.
They existed 228 to 66 million years ago and contrary to popular belief were not dinosaurs, but were instead close cousins to the prehistoric monsters.
The Pterosaur was a flying reptile and the earliest vertebrates known to have evolved powered flight