Dinosaurs

Dinosaurs are reptilian creatures that lived in the past and some of which grew very big. Because many dinosaurs looked really cool, various people try to dig up their fossilized remains. While dragons are a lot like dinosaurs, they didn't really exist so people tend to pay less attention to them. Dinosaurs, on the other hand, are scientifically proven to have existed. They're extinct now, but they once lived and walked upon the Earth, so they're very important because everything that happened in the past is immensely important and relevant to the way people live their lives in the present.