Dinosaur Extinction

Facts, Theories and News About Dinosaur Extinction
We know that the dinosaurs went extinct 65 million years ago, but precisely how (and how fast) this happened is still a matter of dispute. Here's everything you know about current dinosaur extinction theories.

10 Myths About Dinosaur Extinction
Scientists have a pretty good idea why the dinosaurs went extinct--but that hasn't prevented some popular myths from spreading about how, when, and even whether the dinosaurs went down for the count. Here are the top 10 misconceptions about dinosaur extinction.

The K/T Extinction Event
What caused the sudden extinction of the dinosaurs 65 million years ago? Most scientists blame an astronomical impact.

Did the Dinosaurs Really Go Extinct?
Some folks believe the world may still harbor living, breathing dinosaurs. Here's a peek into their reasoning, and why they're probably wrong.

The Permian-Triassic Extinction Event
About 250 million years ago, at the end of the Permian period, over 90 percent of the earth's marine organisms went extinct, along with nearly three-quarters of terrestrial species. What was the cause of this "Great Dying?"

Why Did Crocodiles Survive the K/T Extinction?
Sixty-five million years ago, dinosaurs, pterosaurs and marine reptiles were wiped off the face of the earth by the K/T Extinction--while their close cousins, the crocodiles, managed to survive this global cataclysm. The question is, why?

Did Volcanoes Kill the Dinosaurs?
Most scientists believe that a meteor impact 65 million years ago killed the dinosaurs--but that hasn't kept a respectable fringe from claiming that volcanoes actually did the deed. Did volcanoes, rather than meteors, cause the K/T Extinction?