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scene from "Blade Runner 2049"

If you think you haven't seen any movies based on Philip K. Dick's work, you're probably wrong.  David Gill talks about Hollywood's adaptations of Dick's work.

Trees

Botanist Diana Beresford-Kroeger tells Anne that the lives of trees and human beings are inter-related all the way down to the molecular level.

Lips curled back

"Disgustologist" Valerie Curtis talks about a powerful driver of human emotion.

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