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Episode Clips

Can Sleep Quality and Quantity be Boosted Using Sound?

Scientists use sound to improve sleep.

How Sleep Helps Children Learn and Remember New Words

See how sleep helps children try to learn made-up words.

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Cat Tales

Goddess, demon, house pet? What does science say about the human relationship with cats?

Dog Tales

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

Polar Extremes

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

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