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Vor 5 Tagen · 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.
Vor 3 Tagen · 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. The event caused the extinction of all non-avian dinosaurs.
Vor 2 Tagen · Reconstructing the genome of a long-extinct bird fills in a new branch of the avian family tree, opening doors to study avian evolution, or even someday, to possibly resurrect these species through de-extinction technologies. “To me, this work is all about fleshing out the natural history of this amazing species,” Edwards said.
Vor 3 Tagen · Approximately 251.9 million years ago, the Permian–Triassic (P–T, P–Tr) extinction event (PTME; also known as the Late Permian extinction event, the Latest Permian extinction event, the End-Permian extinction event, and colloquially as the Great Dying) forms the boundary between the Permian and Triassic geologic periods, and ...
Vor 3 Tagen · The Triassic–Jurassic (Tr-J) extinction event (TJME), often called the end-Triassic extinction, was a Mesozoic extinction event that marks the boundary between the Triassic and Jurassic periods, and is one of the top five major extinction events of the Phanerozoic eon, profoundly affecting life on land and in the oceans.
Vor 2 Tagen · June 4, 2024. By Evrim Yazgin. Geological studies of sites in Australia and Antarctica reveal the series of tectonic events which caused a mass extinction more than 500 million years ago. The new ...
Vor 3 Tagen · Endangered (EN), species that possess a very high risk of extinction as a result of rapid population declines of 50 to more than 70 percent over the previous 10 years (or three generations), a current population size of fewer than 250 individuals, or other factors.
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