I think they are real they just haven't been discovered yet. I also believe that there is more to the universe and this earth then we know. Narwhals are the closest things to unicorns so far but I have hope lol
I believe that unicorns are real as an idea. Unicorns are thought as happiness, magic, childhood and the good things in life. I think that they are real in our minds, representing what I listed above.
