The Tree of Life

This site provides information about the phylogenetic relationships and characteristics of organisms and illustrates the diversity of living organisms. Some articles are quite technical and may be difficult to read. Great links to other biological sites make The Tree of Life very useful for research.

Planet Science Site of the Day, Lycos Top 5% Web Site, Magellan 3 Star Site, Dr. Matrix Award for Science Excellence.

David R. Maddison and Wayne P. Maddison, University of Arizona

Biology, Indexes and Resource Lists, Science (General)

Science and Math

10, 11, 12, AP