
The not-so-secret life of plants
08/22/24 • 35 min
1 Listener
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.
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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.
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.
Previous Episode

This is your brain on GPS
GPS is essential these days. We use it for everything – from a hunter figuring out where the heck they are in the backcountry, to a delivery truck finding a grocery store, to keeping clocks in sync.
But our reliance on GPS may also be changing our brains. Old school navigation strengthens the hippocampus, and multiple studies suggest that our new reliance on satellite navigation may put us at higher risk for diseases like dementia.
In this episode, we map out how GPS took over our world – from Sputnik’s doppler effect, to the airplane crash that led to its widespread adoption – and share everyday stories of getting lost and found again.
Featuring: Dana Goward, M.R. O’Connor, Christina Phillips, Michelle Liu, Julia Furukawa, and Taylor Quimby
SUPPORT
Outside/In is made possible with listener support. Click here to become a sustaining member of Outside/In.
Follow Outside/In on Instagram or join our private discussion group on Facebook.
LINKS
In 2023, Google Maps rerouted dozens of drivers in Los Angeles down a dirt road to the middle of nowhere to avoid a dust storm.
Maura O’Connor traveled from rural Alaska to the Australian bush to better understand how people navigate without GPS – and sometimes even maps.
Here’s the peer-reviewed study, published in the journal Nature, that found that young people who relied on GPS for daily driving had poorer spatial memories.
Another study, out of Japan, found that people who use smartphone apps like Google Maps to get around had a tougher time retracing their steps or remembering how they got to a place compared to people who use paper maps or landmarks.
CREDITS
Host: Nate Hegyi
Reported and produced by Nate Hegyi
Edited by Taylor Quimby and Katie Colaneri
Our team includes Marina Henke, Justine Paradis, and Felix Poon
Rebecca Lavoie is our Executive Producer
Music for this episode by Blue Dot Sessions
Outside/In is a production of New Hampshire Public Radio
Next Episode

Why we get scared—and why we like it
Jack Rodolico knows exactly what scares him. Sharks.
But here’s what he doesn’t get: if he’s so freaked out, why can’t he stop incessantly watching online videos of bloody shark attacks?
Why would he deliberately seek out the very thing that spooks him?
To figure it out, Jack enlists the help of other scaredy-cats: our listeners, who shared their fears about nature with us. Together, Jack and the gang consider the spectrum of fear, from phobia to terror, and what it might mean when we don’t look away.
Featuring Lauren Passell, Arash Javanbakht, Nile Carrethers, and Sushmitha Madaboosi.
This episode originally aired in October 2022.
SUPPORT
Outside/In is made possible with listener support. Click here to become a sustaining member of Outside/In.
Subscribe to our (free) newsletter for occasional merch drops and updates.
Follow Outside/In on Instagram or Twitter, or join our private discussion group on Facebook.
LINKS
Lauren Passell’s Podcast the Newsletter.
Related: why people love horror movies.
The ubiquity of smartphones means plenty of hair-raising amateur videos of shark attacks to get you started on your doomscrolling (warning: a couple of these are bloody).
If this image of an octopus freaks you out, you might share Lauren’s “fear of holes,” or trypophobia.
Learn more about augmented reality technology and other projects at Arash Javanbakht’s clinic.
CREDITS
Host: Nate Hegyi
Reported and produced by Jack Rodolico
Mixed by Taylor Quimby
Edited by Taylor Quimby, with help from Justine Paradis, Felix Poon, Nate Hegy, and Jessica Hunt.
Executive producer: Rebecca Lavoie
Music for this episode by Silver Maple, Matt Large, Luella Gren, John Abbot and Blue Dot Sessions.
Thanks to everyone who sent in voicemails and memos, even the ones we didn’t play: Erin Partridge, Lauren Passell, Nile Carrethers, Michelle MacKay, Alec from Nashville, and Hillary from Washington.
Our theme music is by Breakmaster Cylinder.
Outside/In is a production of New Hampshire Public Radio.
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