The mass extinction of dinosaurs and other animals at the end of the Cretaceous period is believed by most scientists to have been caused by

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The most widely accepted theory for the mass extinction of dinosaurs and other animals at the end of the Cretaceous period is the impact of a massive asteroid or comet. This impact is believed to have caused widespread devastation, including wildfires, tsunamis, and a global winter. The evidence for this theory includes the discovery of a large impact crater in Mexico, as well as a layer of sediment containing high levels of iridium, a rare element found in abundance in asteroids and comets.

The Mass Extinction of Dinosaurs and Other Animals at the End