Forever Fresh

There’s something rotten in the cows of Denmark. And Minnesota. And Wisconsin. And Idaho. What could cause a previously thriving herd of majestic dairy cattle to stop drinking water and start drinking … urine? A Danish farmer calls a special investigator, who takes one look at hi ...  Show more

In an episode first aired back in 2025 on our sister show, Terrestrials, we take you on a musical journey all about beavers. Few mammals have a bigger positive impact on the planet than the beaver. With its bright orange buck teeth, the creature is an expert engineer that brings ...  Show more

The next time you open your fridge, take a second to behold the miracles inside of it: Raspberries from California, butter from New Zealand, steak from Nebraska. None of that would have been remotely possible before the creation of the cold chain. The cold chain is the name for t ...  Show more

Original broadcast date: November 4, 2022. For millennia, humans have created artifacts of their lives — from art, to books, to music. This hour, we explore ideas about capturing the ephemeral human experience for future generations to find. Guests include paleoanthropologist Gen ...  Show more

Scientists now agree that COVID spreads via airborne transmission. But during the early days of the disease, public health officials suggested that it mainly did so via close contact. The subsequent back-and-forth over how COVID spread brought science journalist Carl Zimmer into ...  Show more

In a hauntingly innovative exhibit, brain cells grown from the late composer Alvin Lucier’s blood generate sound. Set in a museum in Perth, Australia, the installation blurs the line between art and neuroscience. Host Rachel Feltman and associate editor Allison Parshall explore t ...  Show more