logo
episode-header-image
Aug 2024
35m 49s

The not-so-secret life of plants

NHPR
About this episode

From the perspective of Western science, plants have long been considered unaware, passive life forms; essentially, rocks that happen to grow. 

But there’s something in the air in the world of plant science. New research suggests that plants are aware of the world around them to a far greater extent than previously understood. Plants may be able to sense acoustics, communicate with each other, and make choices… all this without a brain.

These findings are fueling a debate, perhaps even a scientific revolution, which challenges our fundamental definitions of life, intelligence, and consciousness.

Featuring Zoë Schlanger.

 

SUPPORT

Outside/In is made possible with listener support. Click here to become a sustaining member. 

Subscribe to our newsletter for occasional emails about new show swag, call-outs for listener submissions, and other announcements.

Follow Outside/In on Instagram or Twitter, or join our private discussion group on Facebook.

 

LINKS

Zoë Schlanger’s book is called The Light Eaters: How the Unseen World of Plant Intelligence Offers a New Understanding of Life on Earth. 

“Everything Will Be Vine” is a great podcast episode from Future Ecologies featuring Zoë’s journey into the Chilean rainforest, where researchers are mystified by a once-overlooked vine. 

Jagadish Chandra Bose was an Indian scientist who challenged the Western view of plants in the early 20th century. He studied electrical signaling in plants and argued that plants use language. Read about his life and work in Orion.

This is the now famous study by David Rhoades. Rhoades was derided for his “talking trees” theory, and only was proved correct after his death. Here’s an audio story which goes deeper on Rhoades.

Lilach Hadany, the scientist who likened a field of flowers to a “field of ears,” also recently found that plants produce sounds when stressed.

The study which found that plants respond to the sound of caterpillars chewing, a collaboration between Rex Cocroft and Heidi Appel.

The organization of the octopus nervous system is fascinating.

 

CREDITS

Outside/In host: Nate Hegyi

Reported, produced, and mixed by Justine Paradis.

Edited by Taylor Quimby

Our team also includes Felix Poon and Marina Henke.

NHPR’s Director of Podcasts is Rebecca Lavoie

Special thanks to Rex Cocroft for sharing the recordings of leafhopper mating calls and chewing caterpillars.  

Music by Mochas, Hanna Lindgren, Alec Slayne, Sarah the Illstrumentalist, Brendan Moeller, Nul Tiel Records, Blue Dot Sessions, and Chris Zabriskie.

Outside/In is a production of New Hampshire Public Radio.

Up next
Yesterday
The Brick Lady of St. Louis
Ever since a tornado tore through one of St. Louis, Missouri’s poorest neighborhoods, there are piles of bricks all over the place. It’s not just a debris problem. Bricks in St. Louis have a long and complicated history here – the darling of many historic preservationists and a g ... Show More
30m 24s
Oct 1
O/I Trivia: Natural Selection
What do pastries have to do with environmental justice? Cat butts with the climate crisis? And what US president ate a half-chewed piece of salmon leftover from a bear on reality TV?Grab a pencil (and maybe a pint?) and get ready for the inaugural Outside/In trivia episode we’re ... Show More
31m 52s
Sep 24
How to solve the climate crisis in 60-90 minutes
When designer Matt Leacock decided to make a board game about climate action, he knew he wanted to make it – first and foremost – fun to play. “If we sold anything as an educational game… people would run screaming and running for the hills,” he told us. But can simulating the cl ... Show More
28m 23s
Recommended Episodes
Mar 2025
Are These Plants Out of Place? A New Look at Invasive Species
When you hear “invasive plant,” you might picture an aggressive species taking over and harming the environment. But what if the way we think about invasive plants is part of the problem? Host Rachel Feltman chats with Mason Heberling, associate curator of botany at the Carnegie ... Show More
16m 29s
Sep 2023
Tree Soil, Rodent Biologist, Soundscape Artist. Sept 8, 2023, Part 2
Where Soil Grows Above The TreesYou might be used to the feeling of Earth under your feet, but did you know that there’s soil high above your head? Way up in the treetops, where ferns, mosses, flowers, and even trees grow on top of the forest. A new study in Geoderma describes th ... Show More
46m 56s
Jan 2025
Smarty Plants
In an episode we first aired in 2018, we asked the question, do you really need a brain to sense the world around you? To remember? Or even learn? Well, it depends on who you ask. Jad and Robert, they are split on this one. Today, Robert drags Jad along on a parade for the surpri ... Show More
34m 35s
Sep 19
The Spark of Life
In the 1920s, a Russian biologist studying onion roots made a surprising discovery: underground, down in the darkness, it seemed like the cells inside the onion roots were making their own … light. The “onion root experiment” went on to become something of a cult classic in scien ... Show More
36m 1s
Dec 2024
The New Conservationists: AI is Making Meaning from the Sounds and Visuals of Wildlife (Part 2)
Ashleigh Papp, an animal scientist turned storyteller, takes us on into the field. Conservationists and animal behaviorists were once restricted to wildlife data gathered manually. Now new technologies are expanding the amount of passively collected data—and machine learning is h ... Show More
17m 55s
Sep 26
The Dead Composer Whose ‘Brain’ Still Makes Music
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
25m 25s
May 2025
The man who walked butterflies on a leash
Static electricity plays an invisible role in the natural world, and it may even help insects pollinate plants. To understand this hidden force, scientists have jumped through some pretty weird experimental hoops — and “walked” butterflies through literal hoops. Guests: Sam Engla ... Show More
26m 49s
Nov 2024
Humans Inherited a World That Insects Made
What does the Declaration of Independence have in common with Vincent van Gogh’s sketches? The ink used to produce them came from wasps. From pests to products, insects have played an enormous role in human history. Entomologist and animal behaviorist Barrett Klein encourages a h ... Show More
17m 1s
Feb 2025
Exploring the Hidden Life in the Air around Us with Carl Zimmer
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
16m 47s
Aug 2021
Beronda L. Montgomery, "Lessons from Plants" (Harvard UP, 2021)
In Lessons from Plants (Harvard University Press, 2021), Dr. Beronda Montgomery connects the science of plants to the behavior of people. She unpacks how their ability to who they are, where they are, and what they are supposed to do translates into good leadership. In the interv ... Show More
47m 43s