What Are Fossils? (Let's Rock!) (Hardcover)
Fossils provide a valuable look into our ancient past. By examining fossils and the rocks they are found in, scientists understand the effects that events such as mass extinctions, meteroite impacts, and climate change have on Earth's history. This fascinating book explains how plants and animals become fossils, how they are extracted from excavation sites, and how paleontologists and geologists piece together Earth's history by studying these ancient clues.