NOVA

自然 · 历史

S35 E2 Ghost in Your Genes

本集简介

Experts investigate how a mysterious "second genome" helps determine our biological fates.

上一集

2007/10/09 S35 E1

Secrets of the Samurai Sword

Examine the thousand-year-old art and science behind the making of a Japanese warrior's key weapon.

下一集

2007/10/30 S35 E3

Marathon Challenge

Explore what it takes—physically and mentally—for novice runners to make it through a classic test of endurance.

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