Picked at random from a pet store, a humble grey parrot named Alex went on to fundamentally alter the way humans think about animal cognition. In today's episode, Ben, Noel and Max explore how animal psychologist Irene Pepperberg and her parrot pal Alex spent three decades proving it's actually pretty impressive to be 'bird brained.'

The Dark Side of Frank Lloyd Wright, Part Two: Mass Murder, Cults, and the FBI
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The Dark Side of Frank Lloyd Wright, Part One: Professional Success and Personal Turmoil
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CLASSIC: Patriots, Prisoners and Plants: The World of Political Body Doubles
50:08