https://eol.org/
The Encyclopedia of Life (EOL) is an international effort, led by the Smithsonian Institution’s National Museum of Natural History, to raise awareness and understanding of living nature by providing free, open, multilingual, digital access to trusted information on all known species. EOL can be found on the web here.
Founded in 2008 through grants from the John D. and Catherine T. MacArthur Foundation and the Alfred P. Sloan Foundation, EOL has grown to become one of the world’s largest free digital biodiversity information resources, with curated information on nearly 2 million species.