catalog

A 6-year-old worldwide effort to catalog every living species has topped 1 million, researchers report. They hope to complete the listing by 2011, reaching an expected total of about 1.75 million species. Thomas M. Orrell, a biologist at the Smithsonian's National Museum of Natural History, said the finished catalog would include all known living organisms — not just plants and animals but fungi and microorganisms such as bacteria and viruses.