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

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   1. Juli 2024 · Extinction is the dying out or extermination of a species, which can occur due to environmental or evolutionary factors. Learn about the different types of extinction, the causes of human-induced extinction, and the examples of extinct and endangered species from Britannica.

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

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   Vor 2 Tagen · A typical species becomes extinct within 10 million years of its first appearance, although some species, called living fossils, survive with little to no morphological change for hundreds of millions of years.

3. en.wikipedia.org › wiki › Extinction_eventExtinction event - Wikipedia

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   30. Juni 2024 · An extinction event (also known as a mass extinction or biotic crisis) is a widespread and rapid decrease in the biodiversity on Earth. Such an event is identified by a sharp fall in the diversity and abundance of multicellular organisms.

4. www.britannica.com › animal › dinosaurDinosaur - Extinction Causes, Evidence, & Theory | Britannica

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   Vor 4 Tagen · The “moments” of apparently high extinction levels among dinosaurs occurred at two points in the Triassic (about 221 million and 210 million years ago), perhaps at the end of the Jurassic (145 million years ago), and, of course, at the end of the Cretaceous (66 million years ago).

5. www.economist.com › 06 › 27How the last mammoths went extinct - The Economist

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   27. Juni 2024 · How the last mammoths went extinct. Small genetic mutations accumulated through inbreeding may have made them vulnerable to disease. T he woolly mammoths of Wrangel island were survivors. Trapped ...

6. www.businessinsider.in › science › environmentOver 80% of prehistoric megaherbivores went extinct due to human...

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   Recent studies have spotlighted the extinction or rapid decline of large mammals over the past 50,000 years. This is known as the late-Quaternary megafauna extinction. While climate change was...

7. en.wikipedia.org › wiki › Cretaceous–Paleogene_extinction_eventCretaceous–Paleogene extinction event - Wikipedia

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   2. Juli 2024 · The Cretaceous–Paleogene ( K–Pg) extinction event, [a] also known as the Cretaceous–Tertiary (K–T) extinction, [b] was a sudden 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.