Most Helpful Guy
If you honestly believe that we're the only intelligent life in all of space then your quite arrogant.
Actually there is already proof that unicorns existed not to mention several species that actually exist that it could have been. As it's just a flesh and blood animal most likely a horned horse, cow/bull or rhino as there was a kind of furry rhino that had a unicorn horn. Plus I don't think it's not unrealistic that unicorns could have existed at one time since we have other living species like it, like the narwhal for instance or the swordfish. Plus the unicorn is mentioned both in the English bible and the original Hebrew bible.
There's evidence to support the mermaids existed at one time, not sure if they do anymore. And when I mean mermaid I don't mean a beautiful half woman half fish, I mean an aquatic humanoid creature that's intelligent.
Most Helpful Girl
I believe in aliens. It seems pretty narcissistic to think we are the only living things in all the universe.1