This seven-part documentary explains why Charles Darwin's dangerous idea is so important today, and how it explains the past and predicts the future.

What underlies the incredible diversity of life on Earth? How have complex life forms evolved?

The journey from water to land, the return of land mammals to the sea, and the emergence of humans all suggest that creatures past and present are members of a single tree of life.

Episodes included: Darwins Dangerous Idea, Great Transformations, Extinction, The Evolutionary Arms Race, Why Sex, The Minds Big Bang, and What About God.