Search results
5 Feb 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...
19 Okt 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.
1 Jul 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 from Britannica's experts.
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.
29 Mei 2019 · Learn how scientists categorize and track species' decline, from critically endangered to extinct. Explore the factors that drive extinction, such as habitat loss, climate change, and invasive species, and see some examples of endangered and extinct animals.
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.
Learn how human activities have raised the extinction rate far above natural levels and threaten many species with extinction. Explore the history, causes, and projections of biodiversity loss and its impacts on ecosystems and human well-being.
