BrainStuff Classics: What Exactly Are Frankincense and Myrrh?

Frankincense and myrrh play a part not only in the story of Christmas, but in lots of other religious traditions as well -- and a few practical ones, too. Learn more about these aromatic substances in this classic episode of BrainStuff, based on this episode: https://science.howstuffworks.com/life/botany/question283.htm

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