NOVA
Animal Espionage Preview
Camera technology is revolutionizing the study of animals—without them even noticing.
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Polar Extremes Preview
Paleontologist Kirk Johnson explores the dynamic history—and future—of ice at the poles.
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Dog Tales Preview
Follow the epic journey of dog domestication and see what science says about dogs’ love.
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Cat Tales Preview
Goddess, demon, house pet? What does science say about the human relationship with cats?
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Mysteries of Sleep Preview
Why do we sleep? And what does sleep have to do with memory, trauma, and our emotions?