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EVIDENCE Case open

Loch
Ness

Case no.030, Cryptids & paranormal
Also calledNessie
WhereLoch Ness, Scottish Highlands
Modern sightings since1933
Exhibits4, from 1934 to 2018

In the spring of 1934, a London surgeon stopped his car on a new road beside a Scottish loch and took a picture: a small head on a long neck, rising out of dark water. For 60 years it was the best evidence the world had of the Loch Ness Monster. Then one of the men behind it confessed that the monster was .1

The ruins of Urquhart Castle on a green headland, with the long, dark water of Loch Ness stretching away between hills.
Exhibit 030-A Urquhart Castle on Loch Ness, a favorite spot for Nessie watchersPhoto: BIG ALBERT, CC0

Weigh the evidence

0 of 4 rated

Four pieces of evidence that come up in almost every Loch Ness argument. Look at each one and give your first impression. Then read both explanations. You can change your answer any time.

CASE FILE 030CHAPTER 1

A beast in the river

The oldest story is about 1,400 years old. A biography of the Irish monk St. Columba says that around 564, he met a large beast at Loch Ness and ordered it: "Go back with all speed."3

For most of the centuries after that, the loch was just a long, deep, cold lake in the Highlands.

23 milesthe length of Loch Ness. It's more than 200 meters deep in places and holds about 7.4 billion cubic meters of water.
CASE FILE 030CHAPTER 2

The summer of 1933

In 1933, Aldie Mackay, who managed a hotel in Drumnadrochit, said she saw a "whale-like creature" in the loch. The Inverness Courier reported it, and its editor is said to have suggested the word that stuck: monster.2

That same year, a couple named Spicer said a large, long-necked animal crossed the road in front of their car. On November 12, Hugh Gray took the first photo said to show the creature. It was later thought to show an otter.2

Then a London newspaper, the Daily Mail, hired a big-game hunter named Marmaduke Wetherell to find the beast. In December 1933 he found huge footprints on the shore. Experts at the Natural History Museum found they had been made with a dried hippo's foot.1

CASE FILE 030CHAPTER 3

Sixty years of a fake

Four months later came the Surgeon's Photo, taken on April 19, 1934, by Colonel Robert Wilson, a London surgeon, on the new road along the loch's north shore.1

In 1994, Christian Spurling, Wetherell's stepson, confessed. He said Wetherell had wanted revenge for the hippo-foot humiliation, and had built the monster from a toy submarine with a sea-serpent head. Wetherell's son remembered his father saying: "We'll give them their monster."1

CASE FILE 030CHAPTER 4

Hunting with machines

The searches got more serious. In 1960, Tim Dinsdale filmed a dark, humped object moving across the loch. The footage is still argued over.2

In 1987, Operation Deepscan sent 24 boats down the loch with sonar.4 In 2018, a team led by Neil Gemmell of New Zealand's University of Otago looked for DNA instead, and found traces of more than 3,000 kinds of living things, from bacteria to deer to humans.5

In August 2023, a volunteer search called The Quest used drones, infrared cameras and an underwater microphone. It recorded four distinct noises, and nothing conclusive.2

Illustrated portrait of Rex Marlowe, host of the believer case: a weathered man in a canvas field jacket.Host
Personnel file / Statement ARex MarloweThe believer caseHosted an overnight radio show about the unexplained for 20 years. Now he goes to the places in the files.

"Ninety years of people who saw something"

A hotel manager, a couple on the road, a veterinary student, a filmmaker: ordinary people have been reporting something big in that water since 1933.2 One hoaxer doesn't erase all of them. And this is a huge, dark loch, more than 200 meters deep in places.2

The machines haven't closed the case either. The biggest sonar search ever made there found three contacts nobody could identify.4 The DNA survey found eel DNA nearly everywhere, and even the scientists said overgrown eels could explain some sightings.5 In 2023, microphones picked up four distinct noises.2 Something is still down there making people look.

Illustrated portrait of June Okafor, host of the skeptic case: a woman in a blue work shirt holding manila folders.Host
Personnel file / Statement BJune OkaforThe skeptic caseSpent ten years as an insurance fraud investigator. Now she reads the original records so you don't have to.

"The best evidence was a toy"

The photo that made Nessie famous was a toy submarine, and the man behind it had already faked footprints with a hippo's foot.1 The first photo was probably an otter, and so was at least one famous road sighting.2 That's the foundation the legend is built on.

When scientists looked properly, they found nothing big and unknown. The DNA survey found no reptiles at all.5 Plesiosaurs died out 66 million years ago, and the loch is too small to feed a breeding population of them.6 The sonar contacts were most likely debris or water layers.4 People see waves, boats, birds and logs, and the legend tells them what to call it.

Rex and June are characters written for this site and appear in every file. They are not real people. Their arguments come from the sources listed below.

THE STRANGEST PART

The monster that was banished first

The oldest Loch Ness story isn't a sighting. It's a saint giving orders.

According to the biography of St. Columba, the monk faced a large beast around the year 564 and commanded it: "Go back with all speed."3 By that account, the monster has been in retreat for 1,400 years.

READER FINDINGCASE FILE 030

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The file

WhereLoch Ness, Scottish Highlands
First modern report1933
Famous photoSurgeon's Photo, 1934, confessed as a hoax in 1994
StatusNo confirmed evidence. Searches continue.

Common questions

Is the Loch Ness Monster real?

No physical evidence has confirmed it. A 2018 DNA survey of the loch found no reptile DNA, and the most famous photo was confessed as a hoax. Sightings are still reported.

Was the famous Loch Ness photo fake?

Yes. The 1934 "Surgeon's Photo" was a toy submarine fitted with a sea-serpent head, according to a 1994 confession by Christian Spurling, one of the men involved.

Could Nessie be a plesiosaur?

Plesiosaurs died out about 66 million years ago, and paleontologists say the loch is too small to support a breeding population.

Could the Loch Ness Monster be a giant eel?

Eel DNA was found in nearly every water sample in 2018, and the researchers said overgrown eels could explain some sightings, though they considered giant eels unlikely.

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Photo credits: Urquhart Castle, BIG ALBERT (CC0); the Surgeon's Photo (public domain); plesiosaur skeleton, Gary Todd (CC0); Loch Ness, Julian Nyča (CC BY-SA 3.0); European eel, vranken martin (CC BY 4.0). Full list on the credits page.