How Smart Was Alex the Grey Parrot?

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.'See omnystudio.com/listener for privacy information.