How has Earth and life on it changed? What can fossils tell us? Where can you find dinosaur footprints? 'Geological and Fossil Evidence' looks at how evidence of Earth's history can be found by studying different rocks and layers of Earth. Learn how fossils are formed, why Earth's surface is never still, and how the best-preserved dinosaur was discovered. Science fiction meets reality as strange Burgess shale creatures and giant sea monsters roam the oceans. Sniff out a large collection of dinosaur droppings and meet the first human! Life on Earth is constantly changing. It has been doing so for as long as we know and far before humans were here. Through the use of detailed case studies and scientific theories, the books in the 'Timeline: Life on Earth' series discuss how changes are studied, what the evidence reveals, and how such changes have had - and continue to have - an impact on Earth.