Artificial intelligence, we’ve been told, will destroy humankind. No, wait — it will usher in a new age of human flourishing! Guest host Adam Davidson (co-founder of Planet Money) sorts through the big claims about A.I.'s future by exploring its past and present — and whether it has a sense of humor. (Part 1 of "How to Think About A.I.")

The famously profane politician and operative is now U.S. ambassador to Japan, where he’s trying to rewrite the rules of diplomacy. But don’t worry: When it comes to China, he’s every bit as combative as you’d expect.

Americans are so accustomed to the standard intersection that we rarely consider how dangerous it can be — as well as costly, time-wasting, and polluting. Is it time to embrace the lowly, lovely roundabout?

Bjorn Andersen killed 111 minke whales this season. He tells us how he does it, why he does it, and what he thinks would happen if whale-hunting ever stopped.  (This bonus episode is a follow-up to our series “Everything You Never Knew About Whaling.")

In three stories from our newest podcast, host Zachary Crockett digs into sports mascots, cashmere sweaters, and dinosaur skeletons.

In the final episode of our whale series, we learn about fecal plumes, shipping noise, and why "Moby-Dick" is still worth reading. (Part 3 of "Everything You Never Knew About Whaling.")

For years, whale oil was used as lighting fuel, industrial lubricant, and the main ingredient in (yum!) margarine. Whale meat was also on a few menus. But today, demand for whale products is at a historic low. And yet some countries still have a whaling industry. We find out why. (Part 2 of “Everything You Never Knew About Whaling.”)

Whaling was, in the words of one scholar, “early capitalism unleashed on the high seas.” How did the U.S. come to dominate the whale market? Why did whale hunting die out here — and continue to grow elsewhere? And is that whale vomit in your perfume? (Part 1 of “Everything You Never Knew About Whaling.”)