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Hace 3 días · 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.
Hace 3 días · 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 ...
Hace 5 días · Giant beavers, driven to extinction around 11,000 years ago, were plus-sized versions of today's furry little landscape engineers and the largest rodent of the last ice age.
Hace 3 días · 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, 201.4 million years ago, [1] and is one of the top five major extinction events of the Phanerozoic eon, [2] profoundly affecting life on land and in ...
Hace 5 días · 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.
Hace 1 día · by Liz Kimbrough on 5 June 2024. A new study suggests that the loss of plant species due to climate change and human activities could release vast amounts of stored carbon into the atmosphere ...
Hace 3 días · 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.
