Climbing the Tree of Life: Taxonomy and Phylogeny is a supplement for High School biology which takes advantage of student' interest in biodiversity and concern about its decline to introduce concepts of taxonomy and phylogeny, the nature and methods of science, and the personal and social relevance of science. Features include interactive, inquiry-oriented activities with videos, animations, simulations, and printable documents; off-computer research; individual and collaborative learning; and a teacher's implementation guide. Supported during its development by the National Science Foundation, this link is to the Biological Sciences Curriculum Study website.