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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 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.
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.
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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.
- 5 min
- Michael Greshko,National Geographic Staff
Sep 29, 2021 · Climate Fwd: 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....
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.
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.
