Horned monster mystery solved? First of all, what the beached carcass is not: The Loch Ness Monster. And despite rumors that the horned skeleton on the Spanish coast -- seen in pictures last week on the Internet -- is an oarfish, experts believe it is the remains of a shark.
In an August 23 report on the horned monster fish in Spain, NBC News sources say experts are pretty confident that the decaying "sea serpent," as referred to in numerous reports, is the remains of a thresher shark ( depicted here).
Last week, pictures of a creature from the deep that washed up on Luis Siret Beach in the Andalusian village of Villaricos, began circulating on the Web.
Not surprisingly, many drew comparisons to "Mermaids: The Body Found" by Discovery Channel and Animal Planet's "Megalodon: The Monster Shark That Lives" during Shark Week.
With today's Photoshop technology and computer-generated imagery, many dismissed the horned monster pictures as the work of tech-savvy individuals.
Still, superstitious groups that are convinced the world is facing a zombie apocalypse believe the decomposing mutant beast is of alien origin.
"It's hard to tell, but the official guess that it could be a thresher shark seems plausible," said David Shiffman, a University of Miami shark researcher, who blogs about marine biology on Southern Fried Science, according to NBC.
However, one expert, who is considered a premiere authority on shark species, said this about the horned monster in Spain:
"That is definitely a shark skeleton. The elements toward the back were confusing me, but those are the lower caudal fin supports. The 'horns' are the scapulocoracoids which support the pectoral fins," said Florida State University ichthyologist Dean Grubbs.
Still, many Area-51 and UFO-sightings conspiracy theorists are not convinced.