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[The Science Behind the Scent: Why Binturongs Smell Like Popcorn]-[Hot Buttered Popcorn...PEE?!?]

Wow in the World · B1 · 2017-07-20

Preschool Enlightenment
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📋 Summary

The Science of Scent: Exploring the Maillard Reaction and the Binturong Mystery

In this episode of Wow in the World, hosts Mindy and Guy Raz embark on an olfactory adventure to uncover a bizarre scientific mystery: why does the urine of an Indonesian animal smell exactly like fresh, hot buttered popcorn?

The Chemistry of Deliciousness: The Maillard Reaction

The discussion begins in the kitchen, where Guy Raz is preparing popcorn. He explains that the irresistible aroma of toasted bread, rice, or popcorn is not a coincidence but the result of the Maillard reaction. First discovered by French scientist Louis Maillard in 1912, this reaction occurs when amino acids and natural sugars in food are heated, creating a chemical compound known as 2-acetyl-1-pyrroline, or 2-AP for short.

Guy Raz further breaks down the science by explaining that these scents are composed of microscopic molecules—tiny, invisible structures formed when atoms (the teeny tiny, invisible little balls that make up everything in the universe) bond together. This foundational chemistry sets the stage for the main mystery of the episode.

The Binturong: A Bear-Cat with a Popcorn Secret

To solve the mystery of why the Indonesian rainforest occasionally smells like a movie theater, the hosts travel to Southeast Asia to observe the Asian Binturong, also known as the "bear cat" because of its resemblance to a cross between a baby bear and a cat.

Upon encountering the animal, the hosts reveal a startling fact: the popcorn scent is produced by the binturong’s urine. The animal deliberately urinates on its own tail and feet. As it traverses the forest, it drags its tail to leave a scent trail. This serves as a vital communication tool, signaling to other binturongs to "keep out" and establishing the animal's "turf."

Scientific Discovery and Future Implications

Curious about why this specific biological waste carries such a distinct, appetizing odor, a team of researchers led by Lydia Green of Duke University conducted an analysis of binturong urine. Remarkably, they discovered that it contains the same 2-AP chemical compound found in human-made popcorn.

While the exact mechanism—how the binturong's body produces this compound—remains a subject of ongoing scientific inquiry, the researchers hypothesize that a chemical reaction occurs when the urine comes into contact with the animal's skin. This discovery is more than just a scientific curiosity; it holds potential for the future. Understanding how animals produce specific scents could allow scientists to create synthetic versions to help rescue endangered species, using scent to safely guide animals to protected areas or veterinary facilities.

Conclusion

This episode of Wow in the World masterfully connects the chemistry of our daily snacks to the complex communication methods of wildlife. By exploring the 2-AP compound, the hosts highlight how science can explain the most unexpected phenomena, turning a strange smell in the jungle into a breakthrough that could eventually help protect the natural world.

🎯Key Sentences

1
It really classes up the experiment.
2
Wait, what did you just say?
3
I need to imagine this discovery.
4
we don't have time for movies.
5
We've got to get to the bottom of a mystery.
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📝Key Phrases

1
music to your ears
2
get on with the show
3
classes up
4
crank up the heat
5
get to the bottom of
Expand All

📖 Transcript

Grownups, Wondery Plus subscribers can listen to Wow in the World early and ad-free right now.
Join Wondery Plus in the Wondery app or Wondery Kids Plus on Apple Podcasts.
Hey, Wowzer fans, Mindy here.
And before we start the show, I gotta let you know that this November, with a special new episode featuring our friends at Circle Round and Terrestrials on Radiolab for Kids,
And don't miss when Elmo from Sesame Street stops by Wow in the World to make us all belly laugh on November 24th.
Oh, but that's not all, Reg.

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