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Biodiversity Heritage Library
The Biodiversity Heritage Library (BHL) is the world’s largest open access digital library for biodiversity literature and archives. BHL is revolutionizing global research by providing free, worldwide access to knowledge about life on Earth.
Darwin Correspondence Project
Darwin's correspondence provides us with an invaluable source of information, not only about his own intellectual development and social network, but about Victorian science and society in general. They provide a remarkably complete picture of the development of his thinking, throwing light on his early formative years and the years of the voyage of the Beagle, on the period which led up to the publication of The Origin of Species and the subsequent heated debates.
American Museum of Natural History Research Library
AMNH Library Digital Repository is an archive maintained by the Research Library for AMNH Scientific Publications, AMNH scholarly output and other original and published materials digitized by the Library. All information in the repository is freely accessible to scholars around the world to support their research.
The Animal Diversity Web is an online database and encyclopedia of animal natural history, built through contributions from students, photographers, and many others.
The world's largest and most widely used resource on Charles Darwin.
Established in 1964, the International Union for Conservation of Nature's Red List of Threatened Species has evolved to become the world's most comprehensive information source on the global extinction risk status of animal, fungus and plant species.