(Dragons have existed almost since humanity's rise. They have existed in multiple cultures with many different interpretations. However, how would they look like if they actually existed? We will go back to where the dragons first seemingly evolved from)

The cretaceous period. After it was devastated by that gigantic meteor that wiped out almost everything on earth. A Tyrannosaurus Rex approaches on his territory. He hasn't eaten for days. That is until he sees something has set foot on his territory. A potential kill, but he hasn't seen anything like it. He slowly approaches on it before it turns around and screeches at him