This week on Gastropod, a feast of fruits! Specifically, feijoa and durian—and, if you haven’t heard of either, you’re not alone. Unlike the ubiquitous strawberry or banana, durian and feijoa are only popular in a handful of countries and almost unknown in the US, and we wanted to know why—especially because the people who love them really love them. For New Zealanders, like journalist Kate Evans, feijoa is *the* taste of home, even though it's almost forgotten in its original homeland, in Brazil and Uruguay. Meanwhile, the smell of the durian is so intense and distinctive—Julia Child likened it to “dead babies mixed with strawberries and Camembert”—that it's famously banned from public transportation in Singapore. But for durian lovers, like the cancer expert who decoded the fruit's genome, it inspires something close to obsession. Join us this episode for a weird fruit adventure, as we discover why the durian and feijoa inspire such strong feelings, and why they never made it big in the US.

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Whether or not it's Tuesday, tacos pretty much always hit the spot—and not just in their homeland in Mexico. These days, the taco can be found all over the world, although it's acquired some strange new fillings along the way, from French fries to canned corn. It's hard to imagine something so universal having to be invented—but, in fact, the taco as we know it only emerged in the 1800s. In this episode, Gastropod talks taco with the experts, peering through the salsa-smudged veil of history to answer such questions as: What do Cornish miners and their lunchtime pasties have to do with the taco? Did Glen Bell, of Taco Bell fame, actually invent the hard-shell version? Is a burrito also a taco? And how can a seemingly simple snack harbor so many mysteries? Grab a napkin, because things are going to get messy—and delicious—as we dive deep into the taco-verse to find out!

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The tomato is Gastropod’s favorite flavor of summer, and we’re not alone: today, it’s the most popular vegetable on the planet, despite the fact that it's technically a fruit. But, until a couple of hundred years ago, the tomato wasn't really anyone's favorite. In South America, where the tomato originates, no one even bothered to domesticate it; in Mexico, the Aztecs seem to have preferred tomatillos; Renaissance Europeans thought this member of the nightshade family was practically poisonous; and, until the 1830s, most Americans considered them an “acquired taste.” Even in Italy, where the culinary mainstays of pizza and pasta now depend on red sauce, it took centuries to catch on. So why was the tomato so unloved—and how did it end up converting the haters on its rise to glory? Listen in this episode for the story of how Italian block parties, snake oil pills, and the state of Florida played in a role in the tomato’s journey to global domination—as well as the epic tale of one man’s quest to make the industrial tomato taste great again.

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It's the epitome of summertime: there’s nothing like a cold, juicy slice of red watermelon on a swelteringly hot day. But, once upon a time, watermelons were neither red nor sweet—the wild watermelon has white flesh and a bitter taste. This episode, we scour Egyptian tombs, decaying DNA, and ancient literature in search of watermelon's origins. The quest for tasty watermelon continues into modern times, with the rediscovery of a lost (and legendarily sweet) varietal in South Carolina—and the Nigerian musical secret that might help you pick a ripe one. But the fruit's history has often been the opposite of sweet: watermelons have featured in some of the most ubiquitous anti-Black imagery in U.S. history. So how did the watermelon become the most dangerous—and racist—fruit in America? (encore)

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This might sound corny, but the relationship between maize and humanity is essential. We rely on corn—globally, more maize is grown than wheat or rice—and, in turn, corn is utterly dependent on us, to the extent that it's lost the ability to reproduce without our help. But corn's wild ancestor is such an unappetizing weed that, for decades, archaeologists couldn't believe today's juicy cobs were all descended from it. From this unpromising beginning, we've got a story that involves empires, vampires, and generations of women chained to the (literal) grindstone. Pass the popcorn and settle in as we explore the past, present, and future of corn—and the many delicious ways Mesoamericans have invented to get their daily dose of vitamin T(ortilla). Plus: do blue and yellow corn chips actually taste different? And what does it mean for your relationship status if you can't get a tortilla to puff?

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Probably not. But Wall Street Journal reporter Jeff Horwitz decided to try it anyway, putting his body — and specifically his butt — on the line to answer a seemingly straightforward question: Is it possible to build up a tolerance to poison oak by eating it? (Guest episode)

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What do bubblegum, rooibos tea, and meal kits have in common? They’re all topics that puzzle and fascinate you, dear Gastropod listeners. This episode, we're getting to the bottom of your most pressing culinary questions! Such as: Are meal kits really better for the planet than buying and cooking dinner from scratch? Can all the rooibos tea in the world reallycome from one mountain range in South Africa? And what the heck is bubblegum flavor, anyway? Join us this episode for the scoop on meal kits, a tale of tea-drinking babies, and a peek behind the scenes at the Willy Wonka world of bubblegum flavor development from a real-life bubblegum scientist.

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Five centuries ago, before Spanish conquistadors arrived, what's now Mexico City was the Aztec capital of Tenochtitlan—and it took the European invaders' breath away. It was built on an island threaded with canals; it was one of the largest cities in the world; and the Spanish could hardly believe the sheer volume of food sold in the city's main market, let alone the quantity and variety of dishes enjoyed by the Aztec leader, Montezuma. But how did a city built in a lake—and located in a part of the world without cows, sheep, pigs, or chicken—grow enough to feed quarter of a million people? What does it mean to eat like an Aztec, and can you still do it today? This episode, we're time traveling (and real traveling) to find out! Join us on a trip to taste the flavors of Tenochtitlan, and explore the endangered “floating islands” that fed the city—with a menu that included insect eggs, blue-green algae, and some adorable salamanders that just might hold the secret of eternal youth.

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Yes, it's true: the banana we know and love is going the way of the dodo bird. An incurable strain of the fungal Panama disease known as TR4 is currently wiping out tens of thousands of acres of banana plantations, from Malaysia to Australia and Mozambique to El Salvador. But what's bananas is that this has all happened before! Is history doomed to repeat itself? Find out in the grand finale of our banana series. It's banana-pocalypse then *and* now, in this story of CIA subterfuge and human parakeets—plus we get to the bottom of the mystery of banana-flavored candy and meet the weird and wonderful candidates auditioning for the role of banana of the future.

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In 1870, a strange fruit arrived on the docks in New Jersey, starting an industry that would change the world. That fruit was a banana, and, although it was a staple food in tropical regions, most Americans had never tried one. Today, a century and a half later, even the most depressing gas station, corner store, or hotel breakfast buffet in the land has bananas on offer. This week, we’re exploring the story of how humans transformed a tiny berry full of tooth-breaking seeds into the soft, yellow, suggestively-shaped fruits we know and love. Listen in now for the funny but tragic story that involves the invention of the cruise ship vacation, a Brazilian beauty and her iconic tutti-frutti hat, and the creation of the first "banana republic."

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