Describes evolution and the history of the study of evolution.

Imagine -- Evidence from the earth -- How fossils form -- Layers of rock, layers of past life -- The adventures and discoveries of Charles Darwin -- Evolution -- Variation -- Nature's bounty -- Competition -- Natural selection -- After Darwin -- Telling time -- Genetics -- More and more fossils -- "Missing links" found -- Moving continents -- On faraway islands -- Coevolution -- Origin of species -- Evolution, going on right now.