Fossils give us a glimpse into the past. Readers will enjoy learning about different kinds of fossils, how they form, and where they can be found. From the bones left by huge mastodons to the imprints of tiny trilobites, amazing fossil finds are sure to excite readers and give them a close-up look at ancient creatures. The detailed photographs give readers a clear sense of what fossils are and how they have become part of the earth. Readers will learn how paleontology is truly a blending of life science with earth science.