Natural Science & Mathematics

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General Science Anatomy & Physiology Biochemistry Biographies
Biology Botany Chemistry Evolution
Mathematics Microbiology

General Science

  • is a gateway to a wealth of authoritative government science information and research results. It includes access to information on topics such as biology and nature, energy, earth and ocean sciences, environment, natural resources, and much more.

  • The Why Files
    Updated weekly and funded through the University of Wisconsin-Madison, the Why Files explores the "science behind the news." This site covers a broad spectrum of science and provides access to an interesting and somewhat offbeat array of articles. Each article contains links to related information, as well as images and a bibliography.

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Anatomy & Physiology

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  • Biochemistry Online
    This unique, interactive web-based biochemistry text has numerous diagrams and 3-D animations incorporated into the book's chapters. Frequently updated, coverage includes chapters on lipid structure, protein structure, signal transduction, metabolic pathways, and more. This site also includes links to other useful online resources in biochemistry.

  • The Biology Project: Biochemistry
    This University of Arizona website provides problem sets and tutorials in biochemistry. The content is divided into two main categories: chemistry of life and energy reactions. Students can find clear, in-depth explanations and colorful images related to the science of amino acids, pH levels, photosynthesis, metabolism, and more.

  • The Medical Biochemistry Page
    Provided by Dr. Michael W. King of the Terre Haute Center for Medical Education, this resource offers a wealth of information which users can access using the extensive biochemistry subject list found on the site’s homepage. Designed with the undergraduate in mind, each section contains full-text descriptions of a particular subject with accompanying illustrations, tables, figures, and references.

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  • The Biology Project
    This interactive site provides information on biochemistry, cell biology, chemical and human health, developmental biology, human biology, immunology, Mendelian genetics, and molecular biology. Designed for biology students at the college level, this site has activities, interactive problem sets, tutorials, vocabulary lists, and links to useful websites.

  • Encyclopedia of Life (EOL)
    The Encyclopedia of Life began in 2007 with the bold idea to eventually provide “a webpage for every species". The EOL website brings together information from resources across the globe and provides content that is reviewed by professional scientists, life sciences experts, or other competent individuals.

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  • PLANTS Database
    Provided by the United States Department of Agriculture, the PLANTS Database provides standardized information about the vascular plants, mosses, liverworts, hornworts, and lichens of the United States and its territories.

  • Wisflora
    Presented by the Wisconsin State Herbarium at the University of Wisconsin - Madison, this is a fully searchable website of Wisconsin's vascular plant species. It includes photos, habitat information, distribution maps, herbarium specimen data, and more.

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  • ArXiv
    This e-print archive is the premier electronic source for most streams of research in physics, mathematics, computer science, nonlinear sciences, and quantitative biology. Currently this web searchable database provides access to a huge repository of freely accessible papers. ArXiv is operated and funded by Cornell University.

  • Physics Flash Animations
    This site provides Flash animations from different areas of physics. Topics covered include classical mechanics, electricity and magnetism, optics, quantum mechanics, and sound waves. All animations require Flash player which can be downloaded using a convenient link that is also provided.

  • Physics and Astronomy Links -
    This is a comprehensive site for educational, research, and reference resources related to physics and astronomy. It includes an “Ask the Experts” page, physics job board, historical information, directories, fun stuff, and more.

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  • Catalogue of Life
    The Catalogue of Life is a comprehensive and authoritative index of the world's known species of animals, plants, fungi, and micro-organisms. Features include a detailed taxonomic tree that is browsable down to the species level. The Catalogue is compiled from information provided by taxonomic databases from around the world and holds information on the names, relationships, and distributions of over 1.5 million species.

  • National Center for Biotechnology Information (NCBI) Taxonomy Database
    This NCBI database contains an extensive collection of taxonomic information on organisms. A search box is provided for easy access to individual organisms, or users may browse the database using a hierarchical tree. This site also includes links to useful taxonomy resources.

  • NatureServe
    Created by the Association of Biodiversity Information, this site provides access to information on more than 70,000 plants, animals, and ecosystems of the United States, Canada, and Latin America. Entries for organisms provide common name, scientific name, taxonomic hierarchy, distribution, conservation status, ecology and life history information, references, and more. NatureServe includes particularly in-depth coverage for rare and endangered species.

  • Tree of Life
    The Tree of Life Web Project is a collaborative effort of biologists from around the world. The site provides pictures, text, and other information for organisms, living or extinct. Pages also contain hierarchical information in the form of an evolutionary tree of life.

  • uBio
    Provided by the library at the Marine Biological Institute at Woods Hole, this site offers a comprehensive catalog of known names of living (and once-living) organisms. It includes classification information, synonyms, and common names.

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  • AmphibiaWeb
    This site offers access to taxonomic information for amphibians of the world. Species accounts are added regularly and provide species descriptions, life history information, conservation status, literature references, photos, and range maps for many species.

  • Animal Diversity Web
    From the University of Michigan, this online database provides information on animal natural history, distribution, classification, and conservation biology. It includes species accounts for individual animal species and descriptions of taxa above the species level. The numerous species accounts are written by students and edited and reviewed by instructors and professional staff at the University of Michigan.

  • BirdLife International
    BirdLife International is a global partnership of conservation organizations that strives to conserve birds, their habitats, and global biodiversity. According to its website, BirdLife provides information on all birds of the world. It allows users to search for information on a particular species or sets of species by specifying a number of different search criteria. The search feature allows users to find information on endangered or threatened bird species according to geographic location.

  • Butterflies and Moths of North America
    Butterflies and Moths of North America is a searchable database of verified butterfly and moth records for the continent of North America from Panama to Canada. This site includes dynamic distribution maps, photographs, species accounts, and regional species checklists – including checklists for each county in the United States.

  • Cornell Laboratory of Ornithology: Macaulay LibraryThe Macaulay Library is the world's largest and oldest scientific archive of media documenting biodiversity. Animal lovers will appreciate this site’s vast collection of bird and other animal sound and video recordings.

  • FishBase
    Developed at the WorldFish Center in conjunction with the Food and Agriculture Organization of the United Nations, this site provides access to a comprehensive and widely consulted database on the world's fish species. FishBase contains information on practically all fish species known to science.

  • IUCN Red List of Threatened Species
    Provided by the World Conservation Union, the IUCN Red List of Threatened Species provides taxonomic, conservation status, and distribution information on animals and plants that have been globally evaluated using the IUCN Red List Categories and Criteria. The main purpose of the IUCN Red List is to catalogue and highlight those taxa that are facing a higher risk of global extinction.

  • National Wildlife Health Center (NWHC)
    Located in Madison, Wisconsin and maintained by the United States Geological Survey, the NWHC disseminates information to "promote science-based decisions affecting wildlife and ecosystem health”. Its website provides information, technical assistance, research, education, and leadership on national and international wildlife health issues.

  • NatureServe
    Created by the Association of Biodiversity Information, this site provides access to information on more than 70,000 plants, animals, and ecosystems of the United States, Canada, and Latin America. Entries for organisms provide common name, scientific name, taxonomic hierarchy, distribution, conservation status, ecology and life history information, references, and more. NatureServe includes particularly in-depth coverage for rare and endangered species.

  • North American Mammals
    The Smithsonian Institution's National Museum of Natural History developed this website to serve as a resource for students, teachers, and the general public interested in the biology and identification of mammals in North America. It includes detailed descriptions, images, and distribution ranges for mammals native to the North American continent.

  • Primate Info Net
    Maintained by the National Primate Research Center at the University of Wisconsin-Madison, this site combines original content with links to outside sources and provides comprehensive information on a variety of primate species from across the globe.

  • United States Fish and Wildlife Service
    The U.S. Fish and Wildlife Service site provides access to policies, laws, regulations, procedures, planning efforts, scientific research, and educational activities related to the conservation of fish, wildlife, plants, and habitats. Among the site’s resources are information on endangered species, numerous handouts and publications, and an image library.

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