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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.
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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 causes of human-induced extinction, and the current mass extinction event.
- 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...
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.
Feb 5, 2019 · 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.
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.
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.
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.
