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18 de may. de 2024 · The IUCN Red List has assessed 134,425 species. Of these species, 30,178 species are threatened with extinction. (International Union for Conservation of Nature) 28% of all IUCN assessed species are threatened: 41% of amphibians, 26% of mammals, 34% of conifers, 14% of birds, and 36% of sharks and rays, 33% of reef corals, and 38% of selected ...
31 de may. de 2024 · Although the recovery from the Permian-Triassic extinction started with about as few animal species as the Cambrian explosion, the recovery produced far fewer significantly new types of animals. Whatever triggered the early Cambrian diversification opened up an exceptionally wide range of previously unavailable ecological niches.
24 de may. de 2024 · Passenger pigeon, migratory bird hunted to extinction by humans. Billions of these birds inhabited eastern North America in the early 1800s; migrating flocks darkened the skies for days. As settlers pressed westward, passenger pigeons were slaughtered by the millions. The last known individual died in 1914.
29 de may. de 2024 · K–T extinction, a global extinction event responsible for eliminating approximately 80 percent of all animal species about 66 million years ago. It was characterized by the purging of many lines of animals that were important, including nearly all of the dinosaurs and many marine invertebrates.
Hace 2 días · Moa (order Dinornithiformes) are an extinct group of flightless birds formerly endemic to New Zealand. During the Late Pleistocene-Holocene, there were nine species (in six genera). The two largest species, Dinornis robustus and Dinornis novaezelandiae, reached about 3.6 metres (12 ft) in height with neck outstretched, and weighed about 230 kilograms (510 lb) while the smallest, the bush moa ...
13 de may. de 2024 · Over time, invading species can effectively replace native ones, often forcing the localized extinction of many native species. Invasive plants and animals may also serve as disease vectors that spread parasites and pathogens that may further disrupt invaded areas. A global problem
Hace 6 días · A few examples are black rats ( Rattus rattus) and brown rats ( Rattus norvegicus ), [21] domestic cats ( Felis catus ), [22] stoats ( Mustela erminea ), [23] and common brushtail possums ( Trichosurus vulpecula ). [24] This list of extinct species only includes the indigenous biota of New Zealand, not domestic animals like the kurī.
