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- Dictionaryextinction/ɪkˈstɪŋ(k)ʃn/
noun
- 1. the fact or process of a species, family, or other group of animals or plants becoming extinct: "preventing the extinction of this unique frog will require the restoration of ponds and surrounding habitats"
- 2. reduction to zero in the intensity of light or other radiation as it passes through a medium, due to absorption, reflection, or scattering: "ultraviolet extinction"
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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.
Oct 19, 2023 · Extinction is the dying out of a species. Extinction plays an important role in the evolution of life because it opens up opportunities for new species to emerge.
3 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.
Dec 24, 2023 · At least five times, a catastrophe has killed off the vast majority of Earth’s species. As scientists say we’re in a sixth mass extinction, what can we learn from the past?
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 · 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, accelerating natural...
Sep 26, 2019 · September 26, 2019. • 13 min read. More than 99 percent of all organisms that have ever lived on Earth are extinct. As new species evolve to fit ever changing ecological niches, older species...
A mass extinction is a short period of geological time in which a high percentage of biodiversity, or distinct species — bacteria, fungi, plants, mammals, birds, reptiles, amphibians, fish, invertebrates — dies out.
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.
Sep 15, 2020 · Victoria Gill. Tackling climate change will be critical in the endeavour to "bend the curve" on biodiversity loss. What's the link between exploiting nature and human health? New diseases emerge in...
