Biology

Taxonomic information provided in partnership from US, Canadian and Mexican government agencies.

A taxonomy database from the US National Center for Biotechnical Information. Includes genomic data.

Information on algae and sea-grasses including references to journal articles (many full text). Includes terrestrial, marine and freshwater organisms.

Taxonomy data on plants from the United States Department of Agriculture (USDA).

Taxonomy data collected from worldwide organizations. Includes distribution maps.

Explore species by browsing through the branches.

A consistent and up-to-date listing of all the world’s known species.