Every other Friday, NHPR's Outside/In team answers a listener question about the natural world. This week’s question comes from Jenna in Cupertino, Calif. How do plants communicate with each other?

Dear EarthTalk: Is it true that plants communicate by sending chemical signals through the air? -- Melissa, via email Recent ...

In the 1960s and '70s, a series of questionable experiments claimed to prove that plants could behave like humans, that they had feelings, responded to music and could even take a polygraph test.

In Lena Mueller’s lab at the Salk Institute for Biological Studies, dead plants are OK. “Don’t worry, it’s on purpose,” said Kelly Semtner, Mueller’s high school intern, gesturing at a row of wilted ...

Plants are constantly sending chemical messages into the air and soil around them. These invisible signals can summon pollinators, warn neighbors of herbivores, or repel attackers. But new research ...