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Gulp! Why Do We Cook? – Why are humans the only animals who cook? Could cooking have played a major role in human evolution and helped build our brains? David explores this controversial theory and meets scientists studying the biology of digestion with the help of some surprising creatures.

$0 to $100,000 on Amazon (Premium Live Training) – Matt Clark and Jason Katzenback
PBS Nova ScienceNow – Can I Eat That?