Includes protist, plants, invertebrates and vertebrates. Includes resource materials and enrichment activities. Servers Worldwide A list of http servers from around the world and the United States. Also includes gopher and FTP sites.
Users can choose which engines to search, and items retrieved are ranked by relevance.
Boolean searching is supported, as is optional link checking, a more time-intensive process. Duplicate retrievals are removed by the search system. It also provides a full-text index of more than 13,000 newsgroups. Versatile search options allow you to find articles by date, author, subject, and newsgroups. Tracks down information by searching for concepts, not just keywords.