Dinosaur fossils are the preserved remains or traces of dinosaurs that lived millions of years ago. These fossils can include bones, teeth, footprints, and even eggs, providing valuable insights into the lives of these ancient creatures. Paleontologists study these fossils to understand how dinosaurs lived, what they ate, and how they evolved over time. The process of fossilization occurs when organic materials are buried under sediment and mineralized over time. This transformation allows us to uncover the history of dinosaurs and their environments. Each fossil tells a story, helping scientists piece together the puzzle of Earth's prehistoric past.