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.