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Secrets in our DNA
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NOVA

Secrets in our DNA

Some 30 million Americans have sent their DNA to be analyzed by companies like 23andMe and AncestryDNA. But what happens once the sample is in the hands of testing companies, and how accurate are their results? NOVA explores the power of genetic data to reveal family connections, ancestry, and health risks—and even solve criminal cold cases.

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Full Episodes
Season
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Episode
53:17
NOVA

Secret Mind of Slime

Meet slime molds: the brainless blobs that can learn, make decisions, and navigate mazes.
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Episode
1:33:41
NOVA

Human Nature

We can now edit the human genome with a tool called CRISPR. But how far should we go?
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Episode
53:38
NOVA

Decoding COVID-19

Scientists race to understand and defeat the coronavirus behind the COVID-19 pandemic.
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Episode
53:32
NOVA

Nature's Fear Factor

Can bringing predators—and fear—back into an ecosystem help restore its natural balance?
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Episode
53:47
NOVA

Saving Notre Dame

Scientists and engineers fight to save Notre Dame Cathedral after the 2019 fire.
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Episode
53:40
NOVA

Eagle Power

Follow eagles from the nest to the skies to see what makes these predators so remarkable.
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Episode
53:38
NOVA

The Truth About Fat

Could it be that body fat has more to do with biological processes than personal choices?
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Episode
53:09
NOVA

Cuba's Cancer Hope

Can Cuba's innovative lung cancer vaccines give new hope to patients across the world?
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Episode
53:14
NOVA

Mysteries of Sleep

Why do we sleep? And what does sleep have to do with memory, trauma, and our emotions?
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Episode
53:40
NOVA

Cat Tales

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