1. Asteroids: Deadly Impact

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. 25 February 1997

Looks at the career of geologist Eugene Shoemaker, and how searching the sky for a cosmic bullet, it led to his discovery, with his wife Carolyn, of the famous Shoemaker-Levy comet and the confirmation of asteroid impact craters on Earth.

2. Tigers of the Snow

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. 5 April 1997

Ventures into coastal Siberia to track down the Siberian Tiger.

3. Volcano: Nature's Inferno

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. 19 May 1997

A firsthand look at volcanoes throughout the world.

4. Sonoran Desert: A Violent Eden

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. 27 September 1997

The Sonoran Desert's spectacular landscape supports a community of plant and animal life including the Saguaro cactus, nectar bat, and Gila monster.

5. Spitting Mad: Wild Camel of the Andes

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. 30 November 1997

Looks at the dangerous existence of the Andean guanaco.

6. Foxes of the Kalahari

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. 7 December 1997

Africa's Kalahari Desert is one of the harshest places in the world. When the desert dries out after the rainy season the bat-eared fox must outsmart hungry jackals, cheetahs, and lions for its next meal.