Explained

1. 

   E1. Sugar

   Jul 16, 2021 · 24m

   Once crucial for survival, sugar now poses a health risk. Is there a way to satisfy our primeval craving for sweetness in a healthy, balanced way?

2. 

   E2. Royalty

   Jul 23, 2021 · 25m

   How do monarchies survive when they no longer wield power? By presenting a royal fairy tale that may not reflect the reality of the past — or present.

3. 

   E3. Flags

   Jul 30, 2021 · 25m

   A flag can unite, divide and terrorize. Explore how a piece of cloth transformed into a powerful symbol of both love and hate, freedom and oppression.

4. 

   E4. Dogs

   Aug 6, 2021 · 20m

   Who's a good dog? They all are! From puppy-dog eyes to feats of heroism, see how canines evolved into humankind's best friends and sources of pure love.

5. 

   E5. The End of Oil

   Aug 13, 2021 · 24m

   Oil led to huge advancements - and vast inequities. As the planet warms, why is it so hard to turn away from fossil fuels, and can it be done in time?

6. 

   E6. Chess

   Aug 20, 2021 · 23m

   For centuries, chess has captured hearts and minds — and pawns — and it's more popular than ever. What makes this ever-changing board game so special?

+8 more episodes — open all seasons to browse every episode.