"In Western society... [t]here are no more continents... little left to discover. I am, in part, an ant biologist... and I knew that much of the world of insects remains unknown. ...How ignorant are we? The question of what we know and do not know clung to me. ...In looking into the stories of biological discovery, I... began to find... a collection of scientists, often obsessive, usually brilliant, occasionally half-mad... Those individuals very often see the same things that other scientists see, but they pay more attention... and they focus on them to the point of exhaustion, and at the risk of the ridicule of their peers. ...[W]e are, before these discoveries, always more ignorant than we imagine ourselves to be. ...[W]e are repeatedly willing to imagine we have found most of what is left to discover. Before microbes were discovered, scientists were confident that insects were the smallest organisms. Before life was discovered at the bottom of the ocean, many scientists were confident that nothing lived deeper than three hundred fathoms. Once we made a tree of life that included four kingdoms (animals, plants, fungi, and s), we were confident that there would be no more major branches to reveal. ...We are again at a stage when we believe we have found most of what might be found, but we are wrong. ...[W]hole realms of life remain to be found. ...And even before a new realm or kind of life is found, we still have to explore the realms we have already discovered. Most species on Earth are not yet named. Most named species have not yet been studied. When we lived in small communities, hunting and gathering, we knew only the animals and plants around us, particularly those... useful or dangerous. Living on the thin green surface of our small planet in a universe full of stars, we are not so different today. The wild leaps up and more often than not we do not event know its name."