The mysterious “half-man, half-animal” creature was pictured earlier last week in the dead of night on the streets of Totoras, Argentina.
Horrifying footage of the nightmarish beast has now emerged to revel a monster unlike anything known to mankind.
Local media reports claim a Totoras resident snapped the candid picture of the beast with spindly legs, shortly after mauling two dogs to death.
The creature of the night is understood to have killed a Pitbull and a German Shepherd dog in a raging frenzy.
The beast has since vanished but the shocking image captured late at night has circulated online as social media sleuths attempt to crack the mystery.
The picture was shared online on UFO conspiracy YouTube channel UFO Mania, where a video of the other-worldly encounter has racked up tens of thousands of views.
Some who have seen the video likened the ghastly creature to the mythical Chupacabra – a bloodthirsty monster found in South American legend and folklore.
Jimmy Rice said in a comment: “That species is called Chupacabra or Coupacabra. It is a very real creature.”
Others suggested the photograph is concrete evidence of a werewolf roaming the night streets of Argentina.
A YouTube comment by Sebastian P reads: “That’s a werewolf. Imagine if it stood on its back legs, it would be about seven feet.”
Iando Patilan meanwhile suggested the beast is a cursed human man transformed into the monstrous shape of a demonic dog.
The person said under the video: “Here in the Philippines it is called Aswang – a man transform into a monster dog.
“It is a demon and it can even shift into a cat or a big bird.”
One YouTuber in particular claims to have encountered an identical beast in person more than a decade ago.
Grizzlyguy40 commented: “I saw one of those things in Va in 2005, it was crossing a bridge and we came upon it.
“It blew my mind because it looked at us and turned and began moving just like a kangaroo would and cleared the concrete bridge wall easily and dropped at least 15 to 20 feet.
“Haven’t and hope I don’t see it again.”
Grizzly later added: “The one I saw was just barely taller than the concrete bridge walls maybe 4ft tall.
“It was looking off toward the drivers side of the bridge and when I came around the curve I think I caught it off guard.”
Many users drew uncanny similarities between the beast and the characterisation of werewolves in the hit big-screen adaptation of JK Rowling’s Harry Potter novels.
One person jokingly referred to Harry Potter werewolf character Remus Lupin in a comment, saying: “I wonder where Professor Lupin was last night…”
In fact, online detectives were quick to point out the creature looks strikingly similar to the Harry Potter movie creature, because it is in fact a photoshopped image of promotional artwork made for the film.
The image in question can be found on the Harry Potter Wikia page under the section Werewolf and JK Rowling’s official Pottermore website.
One YouTuber who saw through the online hoax, Skyla Maximus, blasted online: “I know the old saying, ‘don’t believe everything on the net!’”