“Jains move through the world in this gentle way because they believe animals are conscious beings that experience, in varying degrees, emotions analogous to human desire, fear, pain, sorrow, and joy. This idea that animals are conscious was long unpopular in the West, but it has lately found favor among scientists who study animal cognition. And not just the obvious cases—primates, dogs, elephants, whales, and others. Scientists are now finding evidence of an inner life in alien-seeming creatures that evolved on ever-more-distant limbs of life’s tree. In recent years, it has become common to flip through a magazine like this one and read about an octopus using its tentacles to twist off a jar’s lid or squirt aquarium water into a postdoc’s face. For many scientists, the resonant mystery is no longer which animals are conscious, but which are not.” More from The Atlantic on animal consciousness.