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.

Learn about the forces inside the Earth that cause volcanoes to erupt and earthquakes to shake the landscape.

Zoom in on a world of creatures that are industrious, sociable, and environmentally useful, but that are nevertheless avoided and ignored. Safely examine the wonders of the insect through macrophotography and startling 3-D graphics that reveal the true importance of these amazing life forms.

Learn amazing facts about rocks, gems, and the Earth itself.

See how different types of weather form and the effect that climate has on our world. Part of the 'Eyewitness' video series.

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

To save humanity, the Earth's mightiest heroes must reunite for a rematch of heroic proportions.