The Infinite Monkey Cage · BBC Radio 4

The Mighty Spud - Sandy Knapp, Glenn Bryan and Susan Calman

July 30, 2025·43 min·3 clips
A farmer in the Andes showed me over a thousand different varieties of potatoes on a single rug.
First, there are ads. Then Brian Cox and Robert Ince tumble through BBC Sounds housekeeping, Douglas Adams jokes, towels, physics puns, and sideways banter that refuses to become a clean doorway. Potatoes wait their turn. Once the panel reaches them, the humble spud stops being pantry furniture and turns into a real biological subject, full of species, variety, and consequences. One speaker sounds genuinely thrown. That reaction gives the excerpt its lift, because she treats the potato lesson less like trivia and more like a small rearrangement in her head. The joke keeps working. She says potatoes have been in her life forever, then realizes she knew almost nothing about the species or how many there were. That is the turn. Losing a potato species gets compared to losing a language, and suddenly the supermarket aisle carries more feeling than expected. It never becomes purely solemn. The rhythm stays comic, with the speaker picturing herself blocking shoppers in Glasgow while trying to appreciate the potatoes. The science still lands. The expert advice nudges listeners toward variety: skin color, flesh color, eye depth, and the different potatoes sitting in front of them next time. It becomes practical wonder. A potato in the house means there is always something to eat, which makes the crop feel ordinary and quietly essential at once. The show trusts the whiplash. A goofy Douglas Adams opener can sit beside a serious point about species loss, because the panel never treats curiosity as delicate. By the end, appreciating a potato sounds less eccentric and more like paying attention to a staple everyone has learned to overlook.

As heard by us

A funny, unexpectedly tender look at potato science that makes the supermarket shelf feel newly alive.

The Mighty Spud turns the potato from dependable kitchen staple into a small portal onto biodiversity, habit and loss. Brian Cox and Robin Ince frame the subject with their usual comic drift, but the episode's best moments come when the guests slow down and look closely:…

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Why you'd press play

You want potatoes and Douglas Adams, delivered by a lively panel that keeps the science front and center.

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