Dinosaurs: Essential History

Dinosaurs and their remains have fascinated mankind for thousands of years. These incredible creatures first roamed the earth around 220 million years ago for 155 million years before they mysteriously disappeared. The fossils and other remains that became their legacy have led to some understanding of these often ferocious beasts. It is possible to tell the species, size, behavior, appearance, and family structures of dinosaurs. Detailed examination of fossils gives valuable insight into h...