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Actor Edward Norton narrates this thought-provoking National Geographic series that gets to the bottom of the most vexing environmental mysteries. Segments explore the global spread of disease, the indispensable role of predators and other topics.
Summary of Season 1 (2005) - 2 discs
Join narrator Edward Norton on a foray into a new age of exploration with this four-part series that probes different scientific mysteries, such as research into the worldwide spread of disease and destruction from invasive species. Other topics in this National Geographic program include the repercussions of global climate change, the vital role predators play in nature's balance, and the spread of toxins throughout the world's water systems.