Also known as the Sensitive plant (or, as I’m calling it, the NOPE plant), the Mimosa thinks every touch is a bad touch, and curls up its leaves whenever it experiences even the gentlest of pokes. Dr. Monica Gagliano and her colleagues from the University of Western Australia decided to treat the Mimosa like an animal, and see if it had short- or long-term memory for what constitutes a harmful touch…
Gagliano’s team used a special device to drop water on the plants repeatedly; after only a few seconds, the plant learned that the water drops were not harmful, and stopped closing up. The plants remembered that the water was okay even weeks later, and after its environment had been changed.
via Geekosystem
