The French philosopher René Descartes, whose views on animals were highly influential, argued that these creatures acted purely by reflex — they had no intellectual capabilities. But there has been a Copernican revolution since then: We now know that sophisticated minds are all around us in the animal queendom — not just in close relatives of humans such as chimps and apes, but also in “aliens from inner space” such as the octopus.
And now we are learning just how smart insects can be. As I show in my new book, “The Mind of a Bee,” the latest research indicates that even tiny-brained bees are profoundly intelligent creatures that can memorize not only flowers but also human faces, solve problems by thinking rather than by trial and error, and learn to use tools by observing skilled bees. They even appear to experience basic emotions, or at least something like optimism and pessimism. The possibility of sentience in these animals raises important ethical questions for their ecological conservation, as well as their treatment in the crop pollination industry and in research laboratories.