In the Watermelon episode, Chuck and Josh stumbled into a bit of little-known history about why artificial banana flavor doesn’t taste like bananas. Turns out it does; it just tastes like a banana you’ve probably never eaten.

Selects: Mangroves: Nature's Best Tree?
44:31

How the Kowloon Walled City Worked
41:27

Short Stuff: In-Flight Entertainment
12:23