National Geographic Specials 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.

Ventures into coastal Siberia to track down the Siberian Tiger.

A firsthand look at volcanoes throughout the world.

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

Looks at the dangerous existence of the Andean guanaco.

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.