Loch Ness Monster isn’t a dinosaur, say scientists — but it might it be a giant eel

After examining 500 million DNA sequences, researchers from New Zealand's University of Otago found no evidence to support popular Loch Ness monster theories — but they think Nessie could plausibly be an overgrown eel

Forget long-lived dinosaurs, over-size sturgeons or giant catfish: the mythical Loch Ness monster may have just been a very big eel. Scientists at the University of Otago, in New Zealand, came to the rather mundane conclusion after examining DNA found in the Scottish landmark’s water.

Professor Neil Gemmell and his team of geneticists had set out to index the loch’s aquatic life by extracting the DNA from water samples. They examined more than 500 million sequences and found ‘absolutely no evidence’ of any reptilian life in the samples.

This put an abrupt end to the much-cherished idea that the monster may have been a plesiosaur that had magically survived for 65 million years. ‘We can be fairly sure there is not a giant, scaly reptile swimming around in Loch Ness,’ Prof Gemmell said at a press conference in Drumnadrochit, Scotland.

He was just as quick to dismiss other treasured theories that Nessie may have been an sturgeon or giant catfish. ‘There may be giant catfish in Loch Ness but we didn’t detect any of them.’ Nor did they find ‘any evidence of sturgeon in the DNA samples, so that seems unlikely.’

Loch Ness — what really does lie beneath?

Loch Ness — what really does lie beneath?

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And although Prof Gemmell was quick to point out that ‘absence of evidence doesn’t mean evidence of absence, so there may be a monster there,’ he was equally adamant that his team didn’t find it.

What the Otago scientists did find, however, was ‘large amounts’ of eel DNA. ‘Every single site we went to had eels. The sheer volume was a bit of a surprise. Is it possible that what people are seeing is a giant eel? Maybe.’

The DNA, Prof Gemmell continued, could have just come from a sizeable number of small eels but it might also belong to a giant one inhabiting the loch. ‘It’s plausible that there might be one or two that grow to extreme size,’ he said. ‘Therefore, we can’t discount the possibility that what people see and believe is the Loch Ness Monster might be a giant eel.’

Indeed, he added, the notion that enormous eels may live in Loch Ness is not entirely novel — it was already put forward in the 1930s to explain the Nessie sightings. ‘It’s something we could plausibly test further,’ said Professor Gemmell ‘So that’s the hunt. The hunt is done, at least for now.’

From plesiosaur to slippery fish may be a bit of a downgrade but, at least, it would mean Nessie is (somewhat) real.