Signal Hill: Caterpillar Roadshow
11 April 2025 - 50 minsA couple years ago, an entomologist named Martha Weiss got a letter from a little boy in Japan saying he wanted to replicate a famous study of hers. We covered that original study on Radiolab more than a decade ago in an episode called Goo and You – check it out here – and in addition to revealing some fascinating secrets of insect life, it also raises big questions about memory, permanence and transformation. The letter Martha received about building on this study set in motion a series of spectacular events that advance her original science and show how science works when a 12-year-old boy is the one doing it. Martha’s daughter, reporter Annie Rosenthal, captured all of it and turned it in...
Series Episodes
23 Weeks 6 Days
A tiny baby, born at 23 Weeks and 6 days—roughly halfway to full term. And a whole universe of medical and moral questions.
1 hour 3 mins
11 September Finished
60 Words
It’s been 25 years since 9/11. Today we talk about the 60 words that ushered in everything that came after.
58 mins
4 September Finished
Dolly Parton's America: Sad Ass Songs
We will always love you, Dolly.
1 hour 4 mins
28 August Finished
Patient Zero
The greatest mysteries have a shadowy figure at the center, Patient Zero. We hunt for Patient Zeroes from all over the map.
51 mins
21 August Finished
Nigel and the Real Gannet
A love story about a rogue bird and his concrete lover.
25 mins
14 August Finished
