Portal:Extinction

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The Extinction Portal

In biology and ecology, extinction is the cessation of existence of a species or group of taxa, reducing biodiversity. The moment of extinction is generally considered to be the death of the last individual of that species (although the capacity to breed and recover may have been lost before this point; see population bottleneck). Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively. This difficulty leads to phenomena such as Lazarus taxa, where a species presumed extinct abruptly "re-appears" (typically in the fossil record) after a period of apparent absence.

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The dodo (Raphus cucullatus) was a flightless bird endemic to the Indian Ocean island of Mauritius. Related to pigeons and doves, it stood about a metre (three feet) tall, weighing about 20 kilograms (44 pounds), living on fruit and nesting on the ground.

The dodo has been extinct since the mid-to-late 17th century. It is commonly used as the archetype of an extinct species because its extinction occurred during recorded human history, and was directly attributable to human activity. The adjective phrase "as dead as a dodo" means undoubtedly and unquestionably dead. The phrase "to go the way of the dodo" means to become extinct or obsolete, to fall out of common usage or practice, or to become a thing of the past.

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Réunion Fody - Liverpool Pigeon - Bromus interruptus - Oceanic Eclectus Parrot - San Cristóbal Vermilion Flycatcher - Beelzebufo - Onychonycteris finneyi - Antioquia Brush-finch - Martinique Curly-tailed Lizard - Navassa Curly-tailed Lizard - White-eyed River Martin - Hodgens' Waterhen - Scarlett's Duck - New Zealand Stiff-tailed Duck - Crested Shelduck - Pile-builder Megapode - Antillean Cave Rail - Ascension Night Heron - Madeiran Large White - Mexican Grizzly - Begonia eiromischa - Bermuda Night Heron - Amsterdam Island Duck (stub) - Finsch's Duck - Cry Violet - Vanvoorstia bennettiana - Ciridops - Lesser Antillean Macaw - San Benedicto Rock Wren - Karocolens tuberculatus - Mecodema punctellum - Pfarrig - Lake Geneva white-fish - Coregonus fera

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The New Zealand Quail have been extinct in 1875

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6 June 2008 The Caribbean Monk Seal (last seen in 1952) is officially declared extinct by the United States Government NOAA: Caribbean monk seal becomes extinct

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Did you know...

... that Materpiscis is the earliest known viviparous vertebrate species?
... that Megachile pluto, the largest bee in the world, was thought to be extinct from 1859 to 1981.
... that Teilhardina magnoliana is the earliest known North American primate fossil.

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Extinction topics

Extinction - Extinction event - Local extinction - List of extinct animals - List of extinct plants - Fossil - Holocene extinction event - Cretaceous-Tertiary extinction event - Cambrian-Ordovician extinction events - Ordovician-Silurian extinction events - Triassic-Jurassic extinction events - Late Devonian extinction - Permian-Triassic extinction event - Signor-Lipps effect - Australian megafauna - Dwarf elephant - Ape extinction - Pseudoextinction - Extinction Vortex - Prehistoric reptile - Human extinction - Voluntary Human Extinction Movement - Evolution - Biodiversity - Invasive species - Breeding back - Lazarus taxon

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Stubs: Corsican Giant shrew, Lord Howe Island Thrush, New Zealand Quail, Grand Cayman Thrush, Anjouan Island Sparrowhawk, Tenerife Giant Rat, Panthera leo vereshchagini, Balearic Giant Shrew, Cretan Dwarf Megacerine, Majorcan Giant Dormouse, Majorcan Hare, Minorcan Giant Dormouse, Sardinian Giant Shrew, , Belgandiella intermedia, Bythinella intermedia, Graecoanatolica macedonica, Ohridohauffenia drimica
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The WikiProject for this topic is Extinction.

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See also Wikispecies, a Wikimedia project dedicated to classification of biological species.

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Dinosaurs	Biology	Cetaceans	Marine Life	Molecular and Cell Biology	Sharks

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