Cover -- Contents -- Color plates -- Preface -- Acknowledgments -- A Timeline of the Spider Fossil Record -- ONE: Fossils -- TWO: Living Fossils -- THREE: Chance and Change -- FOUR: Outward and Upward -- FIVE: Triumph over Thin Air -- SIX: Small Changes, Big Benefits -- SEVEN: Spinning, Running, Jumping, Swimming -- EIGHT: Going Vertical -- NINE: Links -- TEN: Now You See It, Now You Don't -- ELEVEN: Beyond "Perfect" -- TWELVE: Endless Forms -- Notes -- Glossary -- A -- B -- C -- D -- E -- F -- G -- L -- M -- O -- P -- R -- S -- T -- Bibliography -- Index -- A -- B -- C -- D -- E -- F -- G -- H -- I -- J -- K -- L -- M -- N -- O -- P -- R -- S -- T -- U -- V -- W -- X -- Z.