Keach, Stacy

Discovers the wild side of dolphins, like other wild creatures that will kill for reasons other than hunger.

Investigates ancient and medieval technological feats including the transportation and erection of Egyptian obelisks and the Easter Island moai statues, the construction of the Roman baths and China's Rainbow Bridge, and the creation of the trebuchet; and includes an activity book containing stories, further reading lists, and step-by-step instructions for craft projects related to the programs.

Historians, archaeologists, engineers, and stonemasons study the construction of two architectural wonders--the Great Pyramid and an Egyptian obelisk--and test their theories about how they were built by attempting to replicate them with traditional tools.

Historians, archaeologists, engineers, and stonemasons study the construction of two architectural wonders--the Colosseum in Rome and England's Stonehenge--and test their theories about how they were built by attempting to replicate them with traditional tools.

Presents an examination of the building techniques of the Incas of the Peruvian Andes, explaining how they built structures from interlocking stones without the wheel, iron tools, draft animals or mortar, testing theories and showing how local villagers build a breathtaking, 100-foot suspension bridge using grass.

Shows athletes in action and goes to the microscopic level to show how muscles, bones, and the circulatory system work together, how food is digested, and how a fetus grows.

Examines the devastating effects of the ocean current known as El Ni?o.