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Almanac Entry: Fossils: Clues to Ancient Life

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The World Almanac for Kids 2005
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The World Almanac for Kids 2005
01-01-2005

Fossils: Clues to Ancient Life
Section: Dinosaurs



Dinosaurs last roamed the Earth some 65 million years ago. So how do we know so much about them?

Paleontologists are scientists who use fossils to study the past. Fossils are the remains of long-dead animals (like dinosaurs) or plants. Most fossils are formed from the hard parts of an animal’s body, such as bones, shells, or teeth. Some fossils are imprints , like the outline of a leaf, or dinosaur footprints. Most fossils are found in sedimentary rocks , which form from the mud or sand (sediment) at the bottom of oceans, rivers, and lakes. Fossils have also been found in ice and ...

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