

What’s the Best Passport to Carry? (And Why Do We Carry Passports?)
Travel identification has taken many forms over the years, from stone tablets to an exhausting process that involved posting your itinerary on a church door. But how did we arrive at the standardized booklets many of us carry today? How do different countries use art and technology to distinguish t…

Is Recycling Worth the Hassle?
Why does Germany use five different bins for recycling? Can you trick people into being greener by putting wolves on packaging? And is recycling a good business to be in? Plus, why Totes McGoats is one of the worst phrases of all time... but also perhaps the best recycling mascot ever. Featuring Ch…

9 Nutty Facts About Hard-Shelled Fruit
Why did people start (and stop) dyeing pistachios red? How do thieves pull off high-stakes nut heists? What’s up with the coconut that looks like a butt? And why do so many members of the PTG team have beef with pine nuts? Today, we’re cracking the delicious mysteries of nuts (and, yes, things that…

How Clean Should We Be?
Is our obsession with cleanliness keeping us from peak health? Also, can hookworm cure allergies? Will harvesting panda poop make you rich? Plus: Why Amish dust is superior to other dust (seriously!). Featuring Penny Sarchet. This episode originally aired on June 14, 2017. Got a question or idea …

What’s the Best Way to Break a Bad Habit?
Why is it so hard to stop oversleeping and eating candy? Why is it equally hard to start going to the gym and preparing healthy snacks? If you’ve been struggling with New Year’s resolutions, you’re not alone—turns out humans have wrestled with habits for centuries, like the guy who paid his servant…

What Are the Only 10 Foods You'd Need to Survive?
We have ZERO intention of eating less food! But if you had to pare down your pantry to the bare minimum, what are the only foods you'd need to survive? Is an all-potato diet healthy? And did Steve Jobs' strange diet affect his business decisions? Plus, Will and Mango discuss the Woodstock for fruit…

9 Awesome Facts about Opossums
We honk at them in the street and shoo them away from our trash cans, but opossums are so much more than nocturnal nuisances. In today’s episode, Mango and Gabe get better acquainted with America’s only native marsupials, including the truth behind their famous talent for playing dead and their sur…

Why Are Humans So Obsessed With Chocolate?
Will and Mango are on a mission to uncover chocolate's darkest secrets. What's the difference between cacao and cocoa? Why have Swiss scientists been working on a pink chocolate for so long, and what does it really taste like? Plus, why does chocolate melt so perfectly in our mouths? This episode …

Is There Such a Thing as “Authentic” Food?
Let’s be real: eating at Olive Garden isn’t the same as dining in Tuscany. But does that mean the food is inherently worse? Today Will and Mango explore the concept of culinary authenticity, including how it’s measured, who it benefits, and what it really means for one dish to be “more authentic” t…

How Did the Winter Olympics Change Sports?
Who's the Michael Phelps of the early winter games? Why did the 1924 British curling team just get their gold medals? And what are the greatest sports we wish were still in the Olympics (who's up for a round of Korfball)? Will and Mango dive into Olympic history and investigate how one little rule …