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Episode Clips

How Do Sumo Wrestlers Avoid Obesity-Related Diseases?

It has to do with where the fat is distributed in their bodies.

How the Hormone Leptin Helps Regulate Appetite

The discovery of leptin transformed our view of fat.

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Decoding COVID-19

Scientists race to understand and defeat the coronavirus behind the COVID-19 pandemic.

Eagle Power

Follow eagles from the nest to the skies to see what makes these predators so remarkable.

CRISPR Gene-Editing Reality Check

CRISPR gene-editing technology is advancing quickly. What can it do now—and in the future?

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