Fossils
Fossils are the words on the pages of Earth's diary, revealing the history of life on this planet. The only record we have of most of the plants and animals that have lived on earth is the fossils that remain. While a small minority of the ancient Greek philosophers had accurate insights into the formation and origin of fossils, for most of the past 2500 years, fossils have been a mystery.
Today, paleontologists have developed sophisticated methods to decode the fossil record and learn something of how plants and animals lived in the ancient world.
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