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The Cretaceous–Paleogene (K–Pg) extinction event, [a] also known as the K–T extinction, [b] was the mass extinction of three-quarters of the plant and animal species on Earth [2] [3] approximately 66 million years ago. The event caused the extinction of all non-avian dinosaurs.
Why did the dinosaurs go extinct? A new study says it may have been because of their eggs and a long incubation period. The study, published in Proceedings of the National Academy of Sciences ...
Luis Walter Alvarez, left, and his son Walter, right, at the K–T Boundary in Gubbio, Italy, 1981. The Alvarez hypothesis posits that the mass extinction of the non-avian dinosaurs and many other living things during the Cretaceous–Paleogene extinction event was caused by the impact of a large asteroid on the Earth.
He also discusses why the dinosaurs died out while other animals did not, the history of our understanding of the causes of dinosaur extinction, and competing theories. The epilogue covers the rise of mammals after the dinosaur extinction, the subject of Brusatte's next book The Rise and Reign of the Mammals .
A study reveals the chemical makeup of the Chicxulub asteroid that collided with Earth and resulted in the extinction of nearly all dinosaurs 66 million years ago. Dinosaur-killing asteroid was ...
Fossil records from North America indicate dinosaurs were still in their prime 66 million years ago, but the asteroid that struck Earth wiped them out anyway.
The film's estimation is off by a couple million years both in its extinction date and its oldest dinosaur fossil date. Dinosaurs the Terrible Lizards says that the oldest dinosaur fossils were about 225 million years old, as of 2024 a 233 million year old [1] dinosaur fossil was found in Brazil. The film says that dinosaurs went extinct 70 ...
When the dinosaurs went extinct, their absence changed the entire structure of forests, the team hypothesized. “Large animals, such as dinosaurs, are known to alter their surrounding ecosystems ...