Click to return to the Evolution Home Page
darwin change extinction survival sex humans religion
Great Transformations
related web activities
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.
deeptime Deep Time
Explore 4 billion years of life on Earth.
(Flash required)
all in the family All in the Family
Test your skills at judging who's who on the tree of life.
(Flash required)
genetic tool kit Genetic Tool Kit
One set of genes shared by almost all animals makes myriad life forms possible.
life's grand design Life's Grand Design
Are nature's complex forms evidence of "intelligent design"?
  Questions about evolution?
Check out the Evolution FAQ.

Show 2: Great Transformations

Preview: QuickTime or RealPlayer
Buy the Video (entire series)

Help television evolve.
Make a pledge to your PBS station.
Videos Web Activities Site Guide About the Project FAQ Glossary Site Map Feedback Help Shop