Takes you down into the murky world of sharks and their relatives, reveals what motivates these fascinating creatures, and dispels some myths about their behavior. Discover a shark that can fit in your hand and a shark that eats only plankton--and learn that not all sharks are killing machines.

Explores the forces that shape our planet and affect our lives, from hurricanes to volcanoes. Rare footage reveals the Earth at its most violent.

Experience the sites and sounds of the jungle as you journey through the rainforests of the world. Students will learn about pollination, propagation and photosynthesis and meet diverse creatures that inhabit these regions.

Journey through space and time, witnessing the birth of the sun and traveling to the outer limits of the solar system.

Through the ages, man has depended on plants for everything from oxygen to food to building supplies. Gives a colorful tour of the world's most dazzling flora - from the most magical to the most bizarre. Watch buds burst, flowers bloom, and discover the myriad ways plants struggle to survive.

A mixture of animation and live footage serves as a background for a narrated introduction to the general ecology and animal life of the two polar regions and to their place in human history.

A mixture of animation and live footage serves as a background for a narrated introduction to the general ecology and animal life of the two polar regions and to their place in human history.

Discover the ancient myths that surround our oceans and the modern science behind them.

Take a flight of fancy with nature's most beguiling creatures. See their miraculous transformation from lowly caterpillar to airborne adult, and learn why these delicate insects have long inspired and entraced us.

This is an ideal introduction to anatomical science for young viewers. Its visuals are fresh and interesting, its documentary footage is sharp, and Martin Sheen's narration is quite effective.