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Fossils Tell of Long Ago (Revised) (Paperback) (Aliki)
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What is a fossil?
Sometimes it's the imprint of an ancient leaf in a rock. Sometimes it's a woolly mammoth, frozen for thousands of years in the icy ground. Sometimes it's the skeleton of a stegosaurus that has turned to stone.
A fossil is anything that has been preserved, one way or another, that tells about life on Earth. But you can make a fossil, too—something to be discovered a million years from now—and this book will tell you how.