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Extinction - National Geographic Society
https://www.nationalgeographic.org/encyclopedia/extinction/
WEBOct 19, 2023 · extinction. noun. process of complete disappearance of a species from Earth. fossil. noun. remnant, impression, or trace of an ancient organism. Jurassic. adjective. having to do with the time period between 190 million and 140 million years ago, characterized by an abundance of dinosaurs and ammonites.
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Extinction | Definition & Examples | Britannica
https://www.britannica.com/science/extinction-biology
WEB4 days ago · Extinction, in biology, is the dying out or extermination of a species. It occurs when species are diminished because of environmental forces (natural or human-made) or because of evolutionary changes in their members. Learn more about mass extinctions and modern extinctions.
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Extinction - Wikipedia
https://en.wikipedia.org/wiki/Extinction
WEBExtinction 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.
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Extinct species, facts and information - National Geographic
https://www.nationalgeographic.com/animals/article/extinct-species
WEBFeb 5, 2019 · Extinctions happen when a species dies out from cataclysmic events, evolutionary problems, or human interference. February 05, 2019. • 4 min read. The truth is, scientists don’t know how many...
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The Global Extinction Crisis - The New York Times
https://www.nytimes.com/2021/09/29/climate/nyt-climate-newsletter-extinction.html
WEBSep 29, 2021 · The Global Extinction Crisis. More than 20 species on the U.S. endangered list are now gone forever, officials said Wednesday. A million more are at risk. Share full article. Published Sept. 29,...
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Mass extinction facts and information from National Geographic
https://www.nationalgeographic.com/science/article/mass-extinction
WEBSep 26, 2019 · SCIENCE. EXPLAINER. What are mass extinctions, and what causes them? In the last 500 million years, life has had to recover from five catastrophic blows. Are humans dealing the planet a sixth? By...
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What is extinction? The answer is complicated. - National …
https://www.nationalgeographic.com/animals/article/extinction-wild-endangered-species
WEBMay 29, 2019. • 7 min read. Extinction is a natural phenomenon: After all, more than 90 percent of all organisms that have ever lived on Earth aren’t alive today. But humans have made it worse,...
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What We’ve Lost: The Species Declared Extinct in 2020
https://www.scientificamerican.com/article/what-weve-lost-the-species-declared-extinct-in-2020/
WEBJanuary 13, 2021. 10 min read. What We’ve Lost: The Species Declared Extinct in 2020. Dozens of frogs, fish, orchids and other species—many unseen for decades—may no longer exist because of...
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Extinction - National Geographic Society
https://www.nationalgeographic.org/topics/resource-library-extinction/
WEBExtinction. Extinction is the complete disappearance of a species from Earth. Species go extinct every year, but historically the average rate of extinction has been very slow with a few exceptions. The fossil record reveals five uniquely large mass extinction events during which significant events such as asteroid strikes and volcanic ...
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Biodiversity: What is a mass extinction and are we causing one?
https://www.bbc.com/news/science-environment-63875331
WEB9 December 2022. By Patrick Hughes,BBC News Climate and Science. Getty Images. Five times in our planet's history, adverse conditions have extinguished most of life. Now, scientists say, life on...
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