what the what

"They even possess a form of intelligence: bananas and oranges connected to lie-detecting polygraphs have been shown to respond to mathematics questions in experiments by Dr. Ken Hashimoto and Cleve Backster. Asked how much two plus two is, the plants emit a hum that forms into four peaks when translated into ink tracings." Adam Leith Gollner, "The Fruit Hunters" (2008), p. 31.