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Hace 2 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 5 días · The “moments” of apparently high extinction levels among dinosaurs occurred at two points in the Triassic (about 221 million and 210 million years ago), perhaps at the end of the Jurassic (145 million years ago), and, of course, at the end of the Cretaceous (66 million years ago).
Hace 3 días · An extinction event (also known as a mass extinction or biotic crisis) is a widespread and rapid decrease in the biodiversity on Earth. Such an event is identified by a sharp fall in the diversity and abundance of multicellular organisms.
Hace 2 días · The Satanic leaf-tailed gecko, owner of a wonderfully self-explanatory name, lives in the highland rainforests of Madagascar. It uses its tail as camouflage to avoid snakes and birds, but that’s ...
Hace 5 días · Dinosaur - Evolution, Classification, Extinction: After dinosaurs were recognized as a new type of fossil animal, popular fascination with them reached a peak in the 1850s with the first attempts to reconstruct Iguanodon, Megalosaurus, and Hylaeosaurus. An informative classification of dinosaurs was made by T.H. Huxley in 1868.
Hace 2 días · May 28, 2024 — Using ancient DNA extracted from the toe bone of a museum specimen, biologists have sequenced the genome of an extinct, flightless bird called the little bush moa, shedding light...
Hace 2 días · In a first-of-its-kind discovery, a complete mummified wolf was pulled from the permafrost in Siberia, after being locked away for more than 44,000 years. Scientists have now completed a necropsy ...
