m: organisms

Catalogue of Life

"The Catalogue of Life (CoL) is the nearest thing to a comprehensive catalogue of all known species of organisms on Earth. Continuous progress is made towards completion, and this edition contains 1,639,016 living and 5,763 extinct species. Please note that this is probably just over three quarters of the world's known species. This means that for many groups it continues to be deficient, and users will notice that many species are still missing from the Catalogue.

CAB Thesaurus

"The CAB Thesaurus is the essential search tool for all users of the CAB ABSTRACTS™ and Global Health databases and related products. The CAB Thesaurus is not only an invaluable aid for database users but it has many potential uses by individuals and organizations indexing their own information resources for both internal use and on the Internet.