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Sleep

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Every creature on the planet sleeps -- from giant humpback whales to teeny fruit flies. What does it do for us, and what happens when we go without? We take a peek at iguanas sleeping with one eye open, get in bed with a pair of sleep-deprived new parents, and eavesdrop on the uneasy dreams of rats.

Learn more or listen again to this week's episode.

Banner image: thejbird

Credits

Hosts:
Jad Abumrad, Robert Krulwich