Access biological data and information available for the following plant and animal groups - animalia, fungi, monera, plantae, protista, and viruses.
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ARKive
Extensive collection of videos, images, and fact-files showcasing the species of the world.
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BioLib
Plant, fungi, and animal database. Includes news, forums, and an image gallery.
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Cladoscope Cladogram of Life
Presents a taxonomic listing encompassing all organisms on the planet.
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Critter Zone
Offers animal pictures, insect photos, high resolution nature stock photography and wildlife photography.
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EnviroLink: Wildlife
Lists resources on plants, animals, preservation, and endangered species.
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Integrated Taxonomic Information System
Taxonomic information on plants, animals, fungi, and microbes found in different parts of the world.
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IUCN Red List of Threatened Species
Comprehensive information source on the conservation status of animal, fungi and plant species.
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National Center for Biotechnology Information Taxonomy Browser
Provides access to the database. Includes links to the most common species used in molecular research.
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Species 2000 Catalogue of Life Programme
Ongoing project aimed at indexing all plants, animals, microbes and fungi found on Earth.
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Species Accounts
Provides a phylogenetic listing of the world's existing life forms. By Stephen Gene Sullivan.
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Species+
Provides a centralised portal for accessing key information on species of global concern.
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Tree of Life Eukaryotes
Information on the group of organisms with nucleated cells that include plants, animals, fungi and the protists. Includes distinguishing features and major divisions.
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Wikispecies
Free directory of animal, plant, and fungal species.