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Jul 1, 2024 · Extinction is the dying out or extermination of a species, which can be caused by environmental or evolutionary factors. Learn about the different types of extinction, the current extinction crisis, and the history of mass extinctions on Earth.
1 day ago · 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.
1 day ago · 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.
Jul 4, 2024 · Biodiversity loss, the reduction in an area’s biodiversity (the number of genes, species, individual organisms, or ecosystems) expressed by species loss, population declines and reductions in the genetic diversity within a species, and the collapse of biological communities.
2 days ago · Dinosaur - Extinction Causes, Evidence, & Theory: The mass extinction of dinosaurs 66 million years ago remains a misconception; the fossil record shows that dinosaurs were already in decline during the late Cretaceous.
2 days ago · The Cretaceous–Paleogene (K–Pg) extinction event, also known as the Cretaceous–Tertiary (K–T) extinction, was a sudden mass extinction of three-quarters of the plant and animal species on Earth, approximately 66 million years ago.
5 days ago · All of the Big Five have stood the test of time as mass extinctions because of their scale and severity. Paleontologists have been able to detect qualitative shifts—entire groups of organisms ...
