Today, we went to the Museum of National History. In the museum, we learned about dinosaurs, the universe, and the history of living things. Especially dinosaurs' life and the fossils caught my eyes.

 There are four big eras. They are Precambrian, Palezoic, Mesozoic, and Cenozoic eras. Dinosaurs lived during the Mesozoic era. Also, there were 2 kinds of dinosaurs, herbivores and carnivores. Herbivores ate plant, and carnivores ate meat. (ex. herbivorous dinosaurs)

 At the end of same era, dinosaurs became extinct. No one knows the reason why they disappeared, but there are lots of theories by scientists. One of them is the comet theory saying that a comet came to earth and because of it the weather got too cold and dark dinosaurs became extinct.

 Now days, many paleontologists found footprints and bones of dinosaurs in Korea. Through thos footprints and fossils of dinosaurs, we can see that some parts of Korea was a paradise for dinosaurs. I thaught that dinosaurs once live in Korea is very interesting.