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?

When plants face stress, they activate a signaling cascade involving multiple molecules like hydrogen peroxide and plant hormones such as salicylic acid, leading to resistance or stress adaptation. It ...

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.

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

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 ...

The machine, with sharp teeth and a long metal rod, sounds like a kitchen blender, but this is far from your average appliance. “This is a tissue homogenizer,” said Jesse Woodson, an associate ...