Sean B. Carroll

The Making of the Fittest: Natural Selection and Adaptation

The rock pocket mouse is a living example of Darwin's process of natural selection. Evolution is happening right now everywhere around us, and adaptive changes can occur in a population with remarkable speed. This is essential if you're a mouse living in an environment where a volcanic eruption can reverse selective pressure in nearly an instant. The film features Dr. Michael Nachman, whose work on pocket mice reveals a complete story, from ecosystem to molecules, that demonstrates how random changes in the genome can take many paths to the same adaptation-a colored coat that hides them from predators.

Evolution: Constant Change and Common Threads

Join two leading biologists (Dr. Sean B. Carroll and Dr. David M. Kingsley) on an exploration of how key developmental genes, natural selection, and time fuel evolutionary processes.