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Episode Clips

Are Babies Capable of Making Moral Judgements?

To test this, a psychologist puts on a two-act puppet show for infants.

Taking Orders to Be Violent Might be Easier Than You Think

Two researchers at a Polish University recreated the Milgram Shock Experiment.

Has Violence Declined Through the Ages?

Violence is a complicated thing to measure.

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Animal Espionage

Camera technology is revolutionizing the study of animals—without them even noticing.

Polar Extremes

Paleontologist Kirk Johnson explores the dynamic history—and future—of ice at the poles.

Dog Tales

Follow the epic journey of dog domestication and see what science says about dogs’ love.

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