In 1960, investigators found dark bits of feather stuck inside a crashed airplane's engines. They needed someone to figure out what bird they belonged to—and how that bird took down a 110,000-pound plane. Enter Roxie Laybourne, a Smithsonian bird expert who not only answered that question, but also invented the science of using feathers to solve bird-related mysteries. This time on Sidedoor, we revisit some of Roxie's greatest cases and learn how she and her team helped keep the friendly skies friendly for both birds and people.

Gladys Bentley loved women, wore men's clothing, and sang bawdy songs that would make sailors blush...and did it openly in the 1920s and 1930s. This was long before the gay rights or the civil rights movements, yet Bentley became a darling of the Harlem Renaissance alongside icons like Langston Hughes and Josephine Baker. While her provocative performances kept her from becoming as well-known as her peers, they are exactly why she is being rediscovered—and admired—today. In celebration of Women's History Month, we follow the life of a trailblazer who was unapologetically herself at a time when she would’ve been acutely aware of the risks.

In the mid-1990s, investigators identified a mysterious and seemingly unstoppable killer. Its name? Chytrid. Its prey? Frogs. Since then, the disease has ravaged frog populations worldwide, and despite decades of research there’s still no cure. So, like modern-day Noahs, a group of Smithsonian researchers have resorted to a time-honored plan: building an ark…for amphibians. This time on Sidedoor, we travel to the Panamanian jungle to see how it's helping some endangered frogs avoid extinction.

In the 1970s and ’80s, Cheech Marin was famous for being half of the stoner comedy duo "Cheech and Chong." Today, he’s a passionate advocate for Chicano art and is raising awareness around a uniquely Mexican American aesthetic: rasquachismo. In this episode of Sidedoor, Cheech Marin is our guide to the wildly creative and ingenious world of rasquachismo—the Chicano art of working with what you've got.

Happy New Year! We’re busy working on a new batch of Sidedoor episodes and while you wait, we wanted to re-share a story we like from the fall, just in case you missed it the first time around. From 6,000-year-old cave paintings to silver screen stars in movies like Free Willy, whales have long captured the human imagination. And it makes sense—they're among the largest and most intelligent creatures to ever live on our planet. This time on Sidedoor, we’ll explore our surprising relationship with whales through the lens of one species: the gray whale. Once aggressively hunted and thought to be nearly extinct, they've rebounded to become one of the North Pacific’s most abundant whale species. So, what changed?

You know Amelia Earhart, but did you know she was just one of a daring group of women aviators who defied both expectations and gravity in the 1920s? They called themselves the Ninety-Nines, and they’re still flying today as an organization dedicated to the advancement of women pilots. This time on Sidedoor, we time-travel to the Roaring ‘20s to experience America's first official all-female air race, and then meet a modern-day Ninety-Nine who is ensuring that the legacy of Earhart and her fellow pilots continues to thrive.

Meet Eadweard Muybridge, a pioneering and eccentric photographer from the 1800s whose work changed how people understood movement, and paved the way for the invention of motion pictures. But this inventor, artist, and showman also made a name for himself for something much less savory: murder. This time on Sidedoor, come for the ingenuity and stay for the scandal as we find out how a near-death experience, a handsome horse, and a rumored $25,000 bet helped Eadweard Muybridge change the course of photographic history.

Artist Frank Holliday's social circle in the 1980s was a who's who of New York City cool: Andy Warhol, Cyndi Lauper, RuPaul, Keith Haring, and even Madonna. But Frank's odyssey through the art world also placed him at the center of an epidemic that would shake the entire country. In honor of World AIDS Day, Sidedoor takes a look at America's early HIV/AIDS Crisis through the eyes of an artist whose life and work were changed by it forever. 

This episode features recordings from the "Visual Arts and the AIDS Epidemic" Oral History Project produced by the Smithsonian’s Archives of American Art.

In 1621, a group of Pilgrims and Native Americans came together for a meal that many Americans call "The First Thanksgiving." But get this—it wasn't the first, and the meal itself wasn't so special either. The event was actually all but forgotten for hundreds of years…until it was dusted off to bolster the significance of a national holiday. This time on Sidedoor, we talk to Paul Chaat Smith, a curator at the Smithsonian's National Museum of the American Indian, to explore how much of what you think you know about Native Americans may be more fiction than fact.

Inside the Smithsonian’s National Museum of Natural history is the skeleton of Grover Krantz—an accomplished anthropologist, tenured professor…and diehard Bigfoot believer? As the first serious scientist to study the legendary creature, Krantz risked his career and reputation on a subject that many consider a joke. And while the museum remembers him as a man who loved science so much that he donated his body to it, another community remembers Krantz as a pioneer in the study of Sasquatch.