So throughout all, or almost all, editions of Dungeons and Dragons, there is a creature called the Displacer Beast whose primary ability is to make itself appear as if it were a few feet from where it actually is making it very difficult to hit. What I'd like to know is two-part:
- Are there any real creatures with a similar ability? I'm assuming that if there is, it would be aquatic in nature and using either an odd property of light or lives deep enough that it is able to do so in a non-visible section of the spectrum.
- If there are real creatures that have a similar ability that I can make use of, how would such a feature work, on land or in the water?