What if you knew that billions of species have existed since the origin of life on Earth, but that only one has achieved intelligence as we understand it?
Life's Grand Design
Are nature's complex forms evidence of "intelligent design?"
All in the Family
Test your skills at judging who's who on the tree of life.
Adaptation and Natural Selection
Evolution of Diversity
About the Project
WGBH Educational Foundation
Clear Blue Sky Productions, Inc.
All rights reserved.