The End of Dinosaurs

The Cretaceous Extinction

Why did certain plants and animals survive through the end of the Cretaceous period?

Until a definite reason for the extinction is determined, it is difficult to answer such a question as why some animals and plants survived. Apparently, some species were not affected by the occurrence. In fact, nocturnal mammals—probably through luck or inborn tolerance to harsh environmental conditions—largely survived. They quickly exploited all the new places available to them, and soon dominated the planet. Eventually, over millions of years, humans evolved from those species.


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