A catalogue detailing 1.25 million species of organisms across the world is releasing a special edition to mark the International Year of Biodiversity.
Surprisingly, scientists understand better the number of stars there are in the galaxy than species on Earth. Estimates of the total vary (2-100 million), but it is thought just 1.9 million species have been discovered so far.
The Catalogue of Life Special 2010 Edition is the most complete and integrated species list known to man. It has 77 databases feeding into an inventory of 1,257,735 species of plants, animals, fungi and micro-organisms associated with 2,369,683 names.
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