I quote from the interview UNESCO published with Dr. Wilson:
Q. Is it already too late to avert disaster?
A. It is not too late to stem and then halt the extinction of species and the ecosystems they compose. We are certainly too late to save some of them, but global action now can keep the final loss to a minimum. Science and technology will be a crucial part of the solution. Although vertebrates, corals, plants are reasonably well known, and form the basis of current conservation practice, the great majority of insect and other invertebrates remain unknown to science, as well as almost all bacteria and other microorganisms. These latter "Little things that run the world" are crucial to the survival of the larger creatures, including ourselves. We need a major initiative to explore the little known planet on which we live, in order to preserve its life. We also need to know far more about the life cycles and ecological relationships of both the known and unknown species. The science to achieve this should be fed directly into innovations in conservation as well as to advance technology in many fields.