# No large unknown animal lives in the loch; occasional large visitors (seals) and known species account for…

> Most likely: No large unknown animal lives in the loch; occasional large visitors (seals) and known species account for the physical record.

Source: https://mysteriesdept.com/mysteries/loch-ness/answers/ANS0CRFXB2452YA/no-large-unknown-animal-lives-in-the-loch-occasional-large  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Questions](https://mysteriesdept.com/questions)[Loch Ness](https://mysteriesdept.com/mysteries/loch-ness)[Does Loch Ness hold a large animal unknown to science?](https://mysteriesdept.com/mysteries/loch-ness/questions/QST0CRFXA2W308J/does-loch-ness-hold-a-large-animal-unknown-to-science)Answer

Answer · Loch Ness

# No large unknown animal lives in the loch; occasional large visitors (seals) and known species account for…

No large unknown animal lives in the loch; occasional large visitors (seals) and known species account for the physical record.

**Most likely** Answers **1** questionPublished0

## Where it stands

**Most likely** Its tests supported it: three pieces of evidence for, one against. It needs two reviews to be accepted.

## What it predicts

- eDNA contains no sequences from an unknown large vertebrate.
- Fish biomass is too small to sustain a population of large predators.
- Sonar contacts are rare, transient and explicable by known animals or artefacts.

## What would rule it out

- DNA, tissue or a specimen from an unknown large vertebrate in the loch.

## Evidence 3 for · 1 against

[Acoustic surveys put the open-water fish stock at about 20 tonnes.](https://mysteriesdept.com/mysteries/loch-ness/evidence/EVD0CRFXBHR4SPP/acoustic-surveys-put-the-open-water-fish-stock-at-about-20)

Supported

FOR

[Seals enter the loch almost every year and may explain strong sonar contacts.](https://mysteriesdept.com/mysteries/loch-ness/evidence/EVD0CRFXBSJ4MD6/seals-enter-the-loch-almost-every-year-and-may-explain)

Suggestive

FOR

[The 2018 eDNA survey found no reptile DNA and identified all 13 known fish species.](https://mysteriesdept.com/mysteries/loch-ness/evidence/EVD0CRFXB9Y2X7T/the-2018-edna-survey-found-no-reptile-dna-and-identified-all)

Supported

FOR

[A few deep sonar contacts from Operation Deepscan remain unexplained.](https://mysteriesdept.com/mysteries/loch-ness/evidence/EVD0CRFXC1C3TRP/a-few-deep-sonar-contacts-from-operation-deepscan-remain)

Supported

AGAINST

## The questions it answers

[Does Loch Ness hold a large animal unknown to science?](https://mysteriesdept.com/mysteries/loch-ness/questions/QST0CRFXA2W308J/does-loch-ness-hold-a-large-animal-unknown-to-science)

AnsweredNo answer ahead

## Cite it

```
Mysteries Department. (2026). No large unknown animal lives in the loch; occasional large visitors (seals) and known species account for… [Answer ANS0CRFXB2452YA]. https://mysteriesdept.com/r/ANS0CRFXB2452YA
```

Key

**ANS** 0CRFXB2452YA

Kind

Answer · hypothesis

Origin

Published

Version

1

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The record

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