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1. en.wikipedia.org › wiki › ExtinctionExtinction - Wikipedia

   en.wikipedia.org › wiki › Extinction

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   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.

2. Videos

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     Extinction | Official Trailer [HD] | Netflix

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     Extinction: The Facts in 6 minutes

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     How Many Times Has The Earth Experienced An Extinction Event? | The Next Great Event | Spark

     13 Apr 2022

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3. www.nationalgeographic.org › encyclopedia › extinctionExtinction - National Geographic Society

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   Oct 19, 2023 · Learn about the definition, causes, and examples of extinction, the dying out of a species. Explore the history of five mass extinctions and the current threat of a sixth mass extinction due to human activities.

4. www.britannica.com › science › extinction-biologyExtinction | Definition & Examples | Britannica

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   Apr 23, 2024 · Extinction is the dying out or extermination of a species due to environmental or evolutionary factors. Learn about the different types of extinction, the current extinction crisis, and the mass extinctions in Earth's history.

   • Extinction refers to the dying out or extermination of a species. Extinction occurs when species are diminished because of environmental forces suc...
   • Mass extinctions are unusual because of the large numbers of taxa that die out, the concentrated time frame, the wide geographic area affected, and...
   • Many species have become extinct because of human activities such as hunting, overharvesting, the conversion of natural ecosystems to cropland and...

5. People also ask

   What causes extinction of a species?

   • Extinction occurs when species are diminished because of environmental forces (habitat fragmentation, global change, natural disaster, overexploitation of species for human use) or because of evolutionary changes in their members (genetic inbreeding, poor reproduction, decline in population numbers).

   Extinction | Definition & Examples | Britannica

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   Is extinction natural?

   • Extinction happens when environmental factors or evolutionary problems cause a species to die out. The disappearance of species from Earth is ongoing, and rates have varied over time. A quarter of mammals is at risk of extinction, according to IUCN Red List estimates. To some extent, extinction is natural.

   Extinct species, facts and information - National Geographic

   www.nationalgeographic.com/animals/article/extinct-species

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   What happens if a species is extinct?

   • This difficulty leads to phenomena such as Lazarus taxa, where a species presumed extinct abruptly "reappears" (typically in the fossil record) after a period of apparent absence. More than 99% of all species that ever lived on Earth, amounting to over five billion species, are estimated to have died out.

   Extinction - Wikipedia

   en.wikipedia.org/wiki/Extinction

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   What is mass extinction?

   • Although extinction is an ongoing feature of Earth’s flora and fauna (the vast majority of species ever to have lived are extinct), the fossil record reveals five unusually large extinctions, called mass extinction events, each involving the demise of vast numbers of species.

   Extinction | Definition & Examples | Britannica

   www.britannica.com/science/extinction-biology

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6. www.nationalgeographic.com › animals › articleExtinct species, facts and information - National Geographic

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   Feb 5, 2019 · Learn about the causes and consequences of extinction, the natural and human-induced processes that wipe out species from Earth. Explore the history and examples of mass extinctions, and how to prevent the current one.

7. www.nationalgeographic.com › animals › articleWhat is extinction? The answer is complicated.

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   May 29, 2019 · Learn about the different categories and concepts of extinction, from critically endangered to extinct in the wild, and how humans have accelerated species loss. See photos and stories of animals facing extinction or rediscovery.

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9. www.nationalgeographic.com › mass-extinctionMass extinction facts and information from National Geographic

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   Sep 26, 2019 · Learn about the five major mass extinctions in Earth's history, from the Ordovician-Silurian to the Permian-Triassic, and how they were triggered by volcanism, glaciation, asteroids and other events. Find out how these catastrophes shaped the evolution of life on Earth and what lessons they offer for today.

10. www.nationalgeographic.org › topics › resourceExtinction - National Geographic Society

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    Learn about extinction, the complete disappearance of a species from Earth, and its causes and impacts. Explore the fossil record, mass extinction events, and human-induced extinction with classroom resources.