Indexes the world's known species of plants, animals, fungi and microbes on Earth as the baseline dataset for studies of global biodiversity. The goal of the project is to provide a uniform and validated quality index of names of all known species for use as a practical tool. This site is the result of a joint venture between the Biological Resources Divsion of the U.S. Geological Survey and a number of contributors from the private and public sectors. It is an electronic gateway to biological data produced by the federal and state agencies, universities, natural history museums and the private sector. Links to a variety of evaluated and recommended resources for research and teaching.
Site offers a variety of free resources.
A seminal work with timeless data on topics such as pollination, biology, flower structure etc. Original black and white illustrations included. Animal Diversity Web A virtual textbook on animal diversity. A project containing information about the diversity of organisms on Earth, their history, and characteristics. The information is linked together in the form of the evolutionary tree that connects all organisms to each other.