Whether an ancient hoax or an actual prehistoric relative, the Loch Ness Monster has been a subject of fascination for scientists and fantasy enthusiasts alike since 1933.
Now a data analyst has brushed aside one of the most popular theories, after claiming that if Nessie exists, it’s not a giant eel.
Floe Foxon calculated the probability of the existence of a European eel over six meters long in the Scottish loch using catch data.
While this turned out to be “essentially zero,” he admitted that “if it’s real, it could be an eel, but not a very big one.”
A data analyst has put one of the most popular theories about the Loch Ness Monster in check after discovering it wasn’t a giant eel. Pictured: Famous photo of ‘Nessie’, taken in 1934 by Colonel Robert Kenneth Wilson

Length distributions for European eel caught in Loch Ness (left) and graph to show the probability of finding an eel at least as long as L in Loch Ness (right)
Over the years, experts have argued that Nessie sightings were merely the result of naturally occurring bubbles or a “collective illusion” inspired by dinosaur finds.
Dinosaur fossils found in freshwater bodies similar to Loch Ness and resembling the putative beast suggest it could have lived 66 million years ago.
In 2019, University of Otago Professor Neil Gemmell conducted a comprehensive DNA study of the infamous monster’s home from 250 water samples.
His team looked for tiny genetic remnants left behind by life in Loch Ness, which they used to create a detailed list of all the life that lives in the waters.
They identified 15 different species of fish and 3,000 species of bacteria, but found no evidence of plesiosaurs — a prehistoric marine reptile that has been associated with Nessie.
The researchers also found no evidence of large fish such as sturgeon, catfish and Greenland sharks, but did find a “highly significant amount of eel DNA.”
Professor Gemmell said: ‘Eels are very abundant in Loch Ness, with eel DNA found at virtually every site sampled – there are many.
‘Our data doesn’t show how big they are, but the sheer amount of material means we can’t rule out the possibility of giant eels in Loch Ness.
“So we can’t rule out the possibility that what people see and believe is the Loch Ness Monster could be a giant eel.”


In 2019, Professor Neil Gemmell (pictured) conducted an extensive DNA study of Loch Ness from 250 water samples. His team looked for tiny genetic remnants left behind by life, drawing up a detailed list of all the life that lives in the waters.

European eel, or Anguilla anguilla, (pictured) typically grow to between 60 and 80 cm in length, but exceptions have been noted
European eel, or Anguilla anguillausually grow between 2 and 2.6 feet (60 and 80 cm) tall, but exceptions have been noted.
In his new study, Mr. Foxon that there are over 8,000 eels in Loch Ness at any given time.
Based on this figure, the chance of finding an eel about a foot long is about one in 50,000.
But the chance of finding an eel over six meters long is “virtually zero.”
This suggests that if Nessie exists, it’s probably not just another giant eel, Foxon said.
“Some eels may be responsible for alleged sightings of somewhat large animals on the surface of the lake,” he wrote.
‘In a few generations you can expect an eel of one meter in length. However, this is not quite the postulated ‘monster’.’
Mr Foxon, who studied physics at the University of Nottingham but now lives in Pennsylvania, concludes that sightings of the Loch Ness Monster can be explained by ‘wave phenomena’ or ‘the occasional stray mammal’.
The scientist’s calculations were published on bioRxiv as a pre-print yet to be peer-reviewed, along with a similar study on Bigfoot.
Bigfoot, or “sasquatch,” is a hairy, hominid species not yet recognized by science that stands over six feet tall and is said to roam the US and Canada.


Mr. Foxon used statistical modeling to see if there were correlations between Bigfoot sightings (left) and black bear population size in each state and province of North America. Right: Maps showing number of sasquatch reports (top) and black bear populations (bottom) in the United States and Canada
Sightings have been linked to misidentification of the American black bear, Ursus americanusand Mr. Foxon wanted to test the plausibility of this theory.
He used statistical models to see if there were any correlations between Bigfoot sightings and black bear population size in each state and province of North America.
This showed that one sighting is expected for every 900 bears in a given region, lending weight to the misidentification theory.
“Finally, if Bigfoot is there, it could be a lot of bears,” he wrote.
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