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 massive volcanic activity causing an ice age.

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While there are different theories about what caused the mass extinction of dinosaurs and other animals at the end of the Cretaceous period, most scientists currently believe that it was caused by a meteor impact that caused global climate change and other environmental disruptions. Massive volcanic activity may have also played a role, but it is not believed to have been the primary cause.

The Mass Extinction of Dinosaurs and Other Animals at the End