![](/static/66c60d9f/assets/icons/icon-96x96.png)
![](https://lemmy.world/pictrs/image/0d5e3a0e-e79d-4062-a7bc-ccc1e7baacf1.png)
I think the argument that is often made is that we have discovered so little of our oceans that it’s possible we haven’t seen all the different aquatic species there are. Not suggesting Nessie is real, just the overall thought process I feel the believers use.
I would imagine crossword puzzles or anything similar in that nature could also apply.