The world-famous annual Red List of Threatened Species compiled by the Species Survival Commission of the World Conservation Union is now into its fifth decade. The list highlights species at risk of global extinction. It is based on the collective data-gathering of thousands of scientists.

The website contains a database that can be searched by country or by taxonomic group. For first-time users, the FAQ and Summary Statistics sections are a good place to begin. Summary Statistics compares the state of biodiversity in selected regions and among selected species between 1996 and 2002. The site also contains an image library.


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