Which creatures do you think are possibly real in our world? How do they exist and in what form?

Yeah, I think any of these creatures may have existed at one point. I honestly don't know though, anything could exist out there. I wish Dragons existed, especially the huge ones.. that would be amazing. It might not be the best idea though if they attacked us lol. Vampires could possibly exist, they could be out there but I'm not sure if I would like that much. >_>

I would love to think that many of those creatures existed once or still do exist out there!