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JUMP DIRECTLY TO SLIDE The timing of biological evolution Our progress to date Our progress to date "Is not time a pretty toy?" Ralph Waldo Emerson poem Hubble Deep Field picture Outline What do we mean by "evolution?" Defining biological evolution In conflict with the 2nd law? Outline In one hour Precambrian microbes Vendian fossils In one hour Is all evolution gradual? Cyanobacteria: microbial heroes Cyanobacteria Far Side comic Influenza virus evolution Evolution of antibiotic resistance Scientific American graphic Pictures of viruses Long-term laboratory adaptation Punctuated evolution What explains this rapid evolution? The frantic pace of our immune system Microevolution and macroevolution Types of selection The Cambrian EXPLOSION What caused the Cambrian Explosion? Gene diagram Homeotic Mutants None of this was predictable Replaying life's tape? All about Perception Emerson quote Thanks to:        synchronize video with current slide