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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.
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.
H. T. Marshall suggested that bombardment from cosmic or ultraviolet radiation caused the extinction of the dinosaurs. [21] 1929. Alexander Audova analyzed the circumstances of the extinction of the dinosaurs and concluded that they were driven extinct gradually when Earth's climate cooled too severely for their embryos to fully develop in the egg.
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 ...
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 ...
Paleontologists have discovered a new mammal that lived with the dinosaurs in Colorado millions of years ago after unearthing a fossil in ... Before the dinosaurs went extinct 66 million years ago ...
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 .
Which wasn’t entirely correct, as humans didn’t make their first appearance until 65 million years after the dinosaurs went extinct. So humans in no way “conquered” them.