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The Evolutionary Arms Race - 60 minutes
Survival of the fittest: Is it raw competition, a level of cooperation indispensable to life, or both? Explore our own spiraling arms race with microorganisms - the only real threat to our existence - and trace the alarming spread of resistance among pathogens that cause disease.
Why Sex? - 60 minutes
Investigate the endless variety of sexual expression and the powerful hold sex exerts over almost all living things. And discover why, in evolutionary terms, sex is more important than life itself.