DR. JONATHAN BAILLIE is Conservation Programmes Director at the Zoological Society of London, where he is responsible for conservation projects focusing on threatened species in more than 30 countries. In January of 2006 he founded the EDGE of Existence program, which focuses on Evolutionarily Distinct and Globally Endangered (EDGE) species. Dr. Baillie has also contributed to some of the most influential documents on the status of the world's species, including the IUCN Red List of Threatened Species and the WWF Living Planet Report. He lives in London, England.