Biological Sciences

Darwin Core is a metadata standard used to describe biological diversity.

Open access digital data resource in all of biology and medicine. Through an internet information portal and downloadable data archive, the PDB provides access to 3D structure data for large biological molecules (proteins, DNA, and RNA).

Wikispecies is a wiki-based online project supported by the Wikimedia Foundation. Its aim is to create a comprehensive free content catalog of all species and is directed at scientists, rather than at the general public.

An online database that collects the natural history, classification, species characteristics, conservation biology, and distribution information of thousands of species of animals. Includes thousands of photographs, hundreds of sound clips, and a virtual museum.

Planned to become a comprehensive catalogof all known species of organisms on Earth by the year 2011. 66 taxonomic databases with contributions from more than 3,000 specialists from around the world. The Catalogue contains the Annual Checklist and Dynamic Checklist.

A comprehensive database about fish.

Your one-stop source for information on evolution. Contains resource materials, "Evolution 101," and teaching materials.

The Tree of Life Web Project is a collaborative effort of biologists and nature enthusiasts from around the world. On more than 10,000 pages, the project provides information about biodiversity, the characteristics of different groups of organisms, and their evolutionary history (phylogeny).