Animal Diversity Web. (K-12) INTERACTIVE This site is an online encyclopedia and has a searchable encyclopedia of the natural history of animals.  This site is also a science learning tool.  ADW facilitates inquiry-driven learning, that is, teaching about science by leading students to use the methods of science. Our large database is structured, providing consistent information for all species to foster comparisons.. Endangered Species Theme Page  For Kids only: World Wildlife Fund Canada; Here Today, Gone Tomorrow?; and Investigating Endangered Species in the Classroom.   Landmarks for Schools.  This Web site is dedicated to the idea that the very nature of information is changing, practically before our eyes. It is changing in what it looks like, where we find it, what we look at to view it, what we can do with it, and how we communicate it. Here you will find information and tools designed to help us redefine literacy for the 21st Century.   The Natural World of North America. (6-12) INTERACTIVE Nearctica brings you the best of the natural world on the web combining links to other sites with original material. Only the most useful sites are listed and we tell you what to expect when you get to them.  Everyone will find something for interest; students, the family, scientists, and decision makers. Smithsonian National Zoological Park – Animals. INTERACTIVE  The Animal Programs at the National Zoo include exhibits, science and conservation efforts in the wild and at the Zoo, and education resources.