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Episode 27, Season 4<br> Why Sour May Be The Oldest Taste

Season 4 Episode 27

About the Episode

While sour taste's original purpose was to warn vertebrates of danger, in a few animal groups, including us, its role has reversed. The taste of danger became something it was dangerous for us to avoid.

Aired: 04/19/22 | Expires: | Runtime: 7m 02s