Radiolab

This episode originally aired in 2012.

An all-star lineup of producers — Pat Walters, Lynn Levy, and Sean Cole — bring you stories about traps, getaways, perpetual cycles, and staggering breakthroughs. 

We kick things off with a true escape artist — a man who’s broken out of jail more times than anyone alive. Why does he keep running.....

Killer whales — orcas — eat all sorts of animals, including humpback calves. But one day, biologists saw a group of humpback whales trying to stop some killer whales from eating… a seal. And then it happened again. And again. It turns out, all across the oceans, humpback whales are swimming around stopping killer whales from hunting all kinds of animals — from seals to gray whales to sunfish...

This episode, originally aired more than a decade ago, attempts to answer one question: how do you win against your worst impulses? Zelda Gamson tried for decades to stop smoking, but the part of her that wanted to quit couldn’t beat the part of her that refused to let go...

This week, Reporter Peter Smith and Senior Producer Matt Kielty tell the story of the U.S. Supreme Court decision that set the standard for scientific expertise in a courtroom, i.e., whether an expert can testify in a lawsuit. They also tell the story of the Daubert family — yes, the Dauberts of “Daubert v Merrell Dow” — whose win before the nine justices translated into a deeper loss...

This is an episode that first aired in 2018 and then again in the thick of the pandemic in 2020. Why? Because though Horseshoe crabs are not much to look at, beneath their unassuming catcher’s-mitt shell, they harbor a half-billion-year-old secret: a superpower that helped them outlive the dinosaurs, survive all the Earth’s mass extinctions, and was essential in the development of the COVID vaccines.  And what is that secret superpower? Their blood. Their baby blue blood...

Today, we go to a spot that may be one of the most philosophical places in the universe: the thymus, an organ that knows what is you, and what is not you. Its mood may be existential, but its role is practical — the thymus is the biological training ground where the body learns to protect itself from outside invaders (think: bacteria, coronaviruses). But this training is not the humdrum bit of science you might expect. It’s a magical shadowland with dire consequences...

As our co-Hosts Lulu Miller and Latif Nasser are out this week, we are re-sharing the perfect episode to start the summer season!

This one, which first aired in 2014, tells the strange story of a small group of islands that keeps us wondering: will our most sacred natural landscapes inevitably get swallowed up by humans? How far are we willing to go to stop that from happening?

This hour is about the Galápagos archipelago, which inspired Darwin’s theory of evolution and natural...

Since the massacre that took the lives of 19 schoolchildren in Uvalde, Texas, people across the world began to ask versions of one question: why did police wait outside the door instead of protecting the kids?

It's not the first time this question has come up. Two years ago, as she watched police respond to the protests that followed the death of George Floyd, Producer B.A...

A few months ago, co-Host Latif Nasser, who was otherwise healthy, saw blood in his poop. It was the start of a medical journey that made him not only question what was going on in his body, but also dig into the secret genetic story of how we became human. Curled up in a hospital bathroom, Latif tries to sort out whether his ordeal is the result of a long-lost sibling knifing him in the gut or, on the contrary, a long-forgotten kindness shared between two human-ish travelers...

We’re all in a tizzy here at Radiolab on account of our 20-year anniversary. And, as one does upon passing a milestone, we’ve been looking back in all kinds of ways. Two weeks ago, we went out over the airwaves, “Live on your FM dial,” a callback to our origins as a radio show. We revamped our logo and redid our website (get your Freq on, people!). More recently, Lulu's and Latif’s first stories came up in a meeting. They weren’t always the intrepid hosts of our collective journey in wonder...