The well-known naturalist Edward O. Wilson (author of Naturalist, The Diversity of Life, and many other books) gave a talk for TED Conferences LLC in 2007. In the 22-minute presentation (link included in this resource), Wilson discusses why he became a naturalist, the vast and yet undiscovered biodiversity of Earth, why Earthʼs biodiversity is worth saving, threats to biodiversity (Wilsonʼs HIPPO acronym), and his work on the Encyclopedia of Life, an online gathering of information from around