Seen in more than 100 countries, NOVA is the most watched science television series in the world and the most watched documentary series on PBS. It is also one of television's most acclaimed series, having won every major television award, most of them many times over.
Last Episode47x04 Mysteries of Sleep Aired: Feb. 26, 2020
From fruit flies to whales, virtually every animal sleeps. But why? Why do we need to spend nearly a third of our lives in such a defenseless …
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