When 17th Century René Descartes first penned: “I think therefore I am,” he voiced a now-accepted belief, which distinguishes animals from other life forms. His philosophy underscored the connection between the brain and the body. But is ‘thought’ the only trait that determines this distinction? What about the senses? Isn’t our sentient nature to ‘feel things’ also what what separates us from, say . . . the plant world?