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Near threatened (NT): 345 species. Least concern (LC): 3,306 species. Data deficient (DD): 872 species. Mammalian species (IUCN, 2020-1) 5850 extant species have been evaluated. 4978 of those are fully assessed [a] 3651 are not threatened at present [b] 1244 to 2116 are threatened [c] 81 to 83 are extinct or extinct in the wild:
In 2020, a paper studied 538 plant and animal species from around the world and how they responded to rising temperatures. From that sample, they estimated that 16% of all species could go extinct by 2070 under the "moderate" climate change scenario RCP4.5, but it could be one-third under RCP8.5, the scenario of continually increasing emissions.
The dodo became extinct during the mid-to-late 17th century due to overhunting and predation by introduced mammals. [ 1 ] It is an often-cited example of a human-driven extinction. [ 2 ] The Holocene extinction, or Anthropocene extinction, [ 3 ][ 4 ] is the ongoing extinction event caused by humans during the Holocene epoch.
This category lists some of the species that have become extinct due to human activity, whether intentionally or unintentionally. If a more specific reason is known, the species should also be assigned to a subcategory of Category:Endangered species by reason they are threatened. They may also need to be placed in Category:Extinctions since 1500.
The first to become extinct was the Portuguese ibex (Capra pyrenaica lusitanica) in 1892. [7] The Pyrenean ibex was the second, with the last individual, a female called Celia, found dead in 2000. In the Middle Ages, Pyrenean ibex were very abundant in the Pyrenees region, but decreased rapidly in the 19th and 20th centuries due to hunting ...
Extinction is the termination of a taxon by the death of its last member. A taxon may become functionally extinct before the death of its last member if it loses the capacity to reproduce and recover. Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively.
The Cretaceous–Paleogene (K–Pg) extinction event, [a] also known as the Cretaceous–Tertiary (K–T) extinction, [b] was the mass extinction of three-quarters of the plant and animal species on Earth [2][3] approximately 66 million years ago. The event caused the extinction of all non-avian dinosaurs.
Background extinction rate. Background extinction rate, also known as the normal extinction rate, refers to the standard rate of extinction in Earth's geological and biological history, excluding major extinction events, including the current human-induced Holocene extinction. There have been five mass extinction events throughout Earth's history.
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