As any reader of this website knows, people see all kinds of creatures - animal-like beings that don't fit neatly into scientific or even cryptozoological categories. People will swear to you that they saw them with their own eyes. Strange creatures. Creatures that seem to have been spotted perhaps only once in a given area, and never again. So are they real? Do they exist in our physical reality or are they products of imagination and misidentification? Or do they exist in some other reality and pay only brief visits to our dimension, living on the outskirts of our perception?