When Arnold wishes he had more information for his family tree, Ms. Frizzle revs up the Magic School Bus and the class zooms back to prehistoric times. First stop: 3.5 billion years ago! There aren't any people around to ask for directions. Luckily Ms. Frizzle has a plan, and the class is right there to watch simple cells become sponges and then fish and dinosaurs, then mammals and early primates and, eventually, modern humans. It's the longest class...

"If water just keeps getting recycled by a closed system on Earth, how did it get here in the first place? Where did the cycle begin?"--

This study of Native American societies is adapted for younger readers from Charles C. Mann's best-selling 1491. Turning conventional wisdom on its head, the book argues that the people of North and South America lived in enormous cities, raised pyramids hundreds of years before the Egyptians did, engineered corn, and farmed the rainforests.

Filmmaker Roger Nygard (Trekkies) takes on The nature of existence, roaming the globe to interview spiritual leaders, scientists, and artists who have influenced, inspired, or freaked out humanity.

A mixture of animation and live footage serves as a background for a narrated introduction to the history of the creation of the earth, the origin of life, and the evolution of the many species including early man.

Explorers have discovered a clue that brings them to the origins of mankind on Earth. This leads them on a journey that takes them to the darkest corners of the universe.