Extensive collection of videos, images, and fact-files showcasing the species of the world.

Plant, fungi, and animal database. Includes news, forums, and an image gallery.

Presents a taxonomic listing encompassing all organisms on the planet.

Offers animal pictures, insect photos, high resolution nature stock photography and wildlife photography.

Lists resources on plants, animals, preservation, and endangered species.

Taxonomic information on plants, animals, fungi, and microbes found in different parts of the world.

Provides access to the database. Includes links to the most common species used in molecular research.

Ongoing project aimed at indexing all plants, animals, microbes and fungi found on Earth.

Provides a phylogenetic listing of the world's existing life forms. By Stephen Gene Sullivan.

Provides a centralised portal for accessing key information on species of global concern.

Information on the group of organisms with nucleated cells that include plants, animals, fungi and the protists. Includes distinguishing features and major divisions.

Free directory of animal, plant, and fungal species.