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Welcome to Wikispecies The free species directory that anyone can edit. It covers Animalia, Plantae, Fungi, Bacteria, Archaea, Protista and all other forms of life. So far we have 664,519 articles Wikispecies is free, because life is in the public domain! You can also check us out on Twitter: @Wikispecies or use the Android app sponsored by Wikimedia. We also have an IRC Channel #wikispeciesconnect

Taxon Navigation Superregnum Archaea Superregnum Bacteria Superregnum Eukaryota Regnum Protista Regnum Fungi Regnum Plantae Regnum Animalia Virus (classification still unclear)

Haloquadratum walsbyi	Sitta europaea caesia	Caloboletus calopus	♂Aphyocharax anisitsi
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♀Brachypelma smithi	Hippopotamus amphibius	Euphorbia leuconeura	Sarcophaga sp. with Tipulidae

Explore Wikispecies HELP Section – Detailed information on creating pages. Taxonomy – Information on the Linnaean classification of species. Village Pump – Discuss the project. Done and To Do – See references to very detailed areas and defined future targets Wikispecies FAQ – Check replies to common concerns. Image Guidelines – Our recommendation on where to upload illustrations Wikispecies PR – Help us by spreading the word of Wikispecies Collaboration with ZooKeys A collaboration between Wikispecies and ZooKeys has been announced. PhytoKeys also joined the collaboration in November 2010. Images of species from ZooKeys and PhytoKeys will be uploaded to Wikimedia Commons and used in Wikispecies. Distinguished author Georges Cuvier 1769–1832. Standard IPNI form: Cuvier Georges Léopold Chrétien Frédéric Dagobert Cuvier (most often published simply as "Georges Cuvier") was a French naturalist and zoologist. He is sometimes referred to as the founding father of paleontology. Cuvier was a major figure in natural sciences research in the early 19th century and was instrumental in establishing the fields of comparative anatomy and paleontology through his work in comparing living animals with fossils. Cuvier's work is considered the foundation of vertebrate paleontology, and he expanded Linnaean taxonomy by grouping classes into phyla and incorporating both fossils and living species into the classification. Cuvier is also known for establishing extinction as a fact: at the time, extinction was considered by many of Cuvier's contemporaries to be merely controversial speculation. He is also remembered for strongly opposing theories of evolution, which at the time (before Darwin's theory) were mainly proposed by Jean-Baptiste Lamarck and Étienne Geoffroy Saint-Hilaire. Cuvier believed there was no evidence for evolution, but rather evidence for cyclical creations and destructions of life forms by global extinction events such as deluges (outburst flooding). Cuvier wrote hundreds of scientific papers and books. His most famous work is Le Règne Animal (1816–1817, four tomes; English title The Animal Kingdom). It sets out to describe the natural structure of the whole of the animal kingdom based on comparative anatomy, and its natural history. Cuvier divided the animals into four embranchements ("Branches", roughly corresponding to phyla), namely vertebrates, molluscs, articulated animals (arthropods and annelids), and zoophytes (cnidaria and other phyla). He is the author of thousands of new taxa, among them well over 5,000 species of fish and molluscs. In 1800 and working only from a drawing, Cuvier was the first to correctly identify in print, a fossil found in Bavaria as a small flying reptile, which he named the Ptero-Dactyle in 1809 (later Latinized as Pterodactylus antiquus). When the French Academy was preparing its first dictionary, it defined "crab" as "A small red fish which walks backwards." This definition was sent with a number of others to the naturalist Cuvier for his approval. The scientist wrote back: "Your definition, gentlemen, would be perfect, only for three exceptions. The crab is not a fish, it is not red, and it does not walk backwards." In 1819, he was created a peer for life in honour of his scientific contributions and is thereafter known as Baron Cuvier. See also: Distinguished authors of previous months.

Species of the month Decim Periodical Cicada Magicicada septendecim Some facts on this insect: Body length: 28-29 mm. Eggs deposited by the female: 400-600. Male song: High-pitched call resembling "weeeee-whoa" or "Pharaoh". Range: Canada and the United States. Life-span: 17 years. First described: By Swedish naturalist Carolus Linnaeus in 1758, who originally named it Cicada septendecim. No insect has more patience than Magicicada septendecim. These cicadas spend 17 years underground, waiting for the proper time. Then, all of a sudden, the mature nymphs emerge synchronously in tremendous numbers. The adults are active for about 4 to 6 weeks, when the males aggregate into chorus centers and attract females for mating. The females puncture the bark of twigs using the blades of a sawlike device at the end of their abdomen and make a pocket in the wood, where they lay their eggs. Hatching occurs six to seven weeks after egg laying. The adults drop dead and the white, antlike nymphs work their way out of the slits and make it to the ground, burrow to about 3 cm beneath the soil surface and stop and await the right time to emerge again. The life cycle is complete, and the cicadas are gone for another 17 years. Magicicada septendecim are devided into broods designated by Roman numerals based on the year they emerge. The numerals I through XVII are assigned to the 17-year broods. For example brood I are called "The Blue Ridge Brood". They last emerged in 1995 and are expected to emerge again in 2012. The periodical cicadas include 7 species: three follow a 17-year cycle and four more species follow a 13-year cycle. They belong to the family Cicadidae which contains about 2,500 species around the world. See also: Species of previous months

Endangered species of the month Lord Howe Island stick insect Dryococelus australis Some facts about this species: Total length: 130–140 mm Weight: 25 grams Distribution: It was thought to be extinct by 1920, only to be rediscovered in 2001. It is extinct in its largest habitat, Lord Howe Island (Tasman Sea, Pacific Ocean). It has been called "the rarest insect in the world", as the rediscovered population consisted of a mere 24 individuals living on the small islet of Ball's Pyramid (20 km southeast of Lord Howe Island, measuring 1,100 metres in length and 300 metres across). Diet: Herbivore. Surviving number: Less than 15,000 specimens, mainly in captivity. Conservation status: Critically Endangered (IUCN 3.1). First described: As Karabidion australe by the French botanist, zoologist and entomologist Xavier Montrouzier in "Essai sur la faune del'ile de Woodlark ou Moiou", Annales De La Societé D'Agriculture De Lyon, 1885.

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