1. The Tale of a Tooth

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. 8 September 1991. 60 min

When Englishman William Buckland found a large tooth in 1824, scientists began to unravel the mystery a world no one knew existed.

2. Tale of a Bone

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. 9 September 1991. 60 min

Cronkite heads to Montana, Wyoming and Utah, where dinosaur bones were discovered in the 1870s.

3. The Tale of an Egg

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. 10 September 1991. 60 min

A dinosaur egg was found in the Gobi Desert in 1922. More eggs were found later in a nesting site in Montana.

4. Tale of a Feather

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. 11 September 1991. 60 min

The story of an unusual dinosaur with feathers found in Germany in 1861.