Crowley had a house there beside Loch Ness, I went up to see it a few years ago.

I think the 'monster' is probably amphibious, maybe a Cthulhu-type of creature like a seaslug or cephalopod (tho' they usually tend to be saltwater?). Anything cryptozoology I have no problems agreeing that they probably exist, as I can't see any realistic way of claiming to know every animal that exists! There's bound to be all kinds that haven't been sighted or counted yet in terms of taxonomy.

Plus even a stringent evolutionary theorist would have to agree that 'survival of the fittest' in terms of animals - they'd need to avoid humans as much as they possibly could.