Earlier this week I was watching a show on National Geographic on giant-sized catfish in rivers in Europe (called River Jaws: Monster Catfish). At first I wasn't really paying attention, but then started to and found it quite interesting. Some catfish had been released in various rivers, lakes, etc. and some have reached gigantic sizes, like this giant wels catfish that was caught in 2015, and which was filmed for the show.
After watching the show, I began to think more about the theory that the Loch Ness Monsters could be gigantic Wels catfish.
If there are catfish that big in the loch, and someone on the shore on on the lake itself saw one like the one pictured above, it would certainly seem like a monster, wouldn't it?
This is a theory that I think may have some merit…