Animals of the Earth Exploration Space Progress in Science and Technology Exploration Space Biodiversity Evolution of Life Evolution of Life The Natural World Behind the Scenes at the National Science Museum   Nature of the Japanese Islands History of the Japanese Islands Organisms of the Japanese Islands Japanese People and Nature Techniques in Observing Nature   has been viewed. --Solving the Mysteries of the Dinosaurs-- There is much to learn about dinosaurs. When did they first appear on Earth? What sort of creatures were they? Do descendents of dinosaurs walk the Earth today? In this exhibit, paleontologists from around the world tell us about what they know about dinosaurs. Some scientists believe dinosaurs had far greater mobility and were more sociable animals than previous research shows. For over 100 million years, dinosaurs roamed far and wide over the earth. The relatively limited time dinosaurs existed is a pivotal point in the evolution of life. The history of a dinosaur Biology of dinosaurs Dinosaurs in the history of life