If you think today's insects are creepy, wait till you see what wriggled and slithered through the world hundreds of millions of years ago! Learn how insects survived catastrophic events that completely wiped out other creatures. See whic of their strange adaptations can still be found in insects today. Grab your flyswatter and get ready for Paleo bugs!

Timeline -- What is an arthropod? -- Paleozoic arthropods and their relatives -- Sanctacaris/Marella -- Calymene/Pterygotus -- Limuloides -- Myriacantherpestes/Rhyniognatha -- Meganeura -- Arthropleura -- Mesotarbus -- Aphthoroblattina -- Mesozoic arthropods and their relatives -- Archaeolepis/Heptagenia -- Aphrodiites (dung beetle) -- Eryon/Icriocarcinus -- Protoparevania (wasp) -- Sphecomyrma (ant) -- Cenozoic arthropods and their relatives -- Prodryas (butterfly) -- Arthropods today.