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 dinosaurs went down for the count. Here are the top 10 misconceptions about dinosaur extinction.
The K/T Extinction Event
The prevailing view among scientists is that the extinction of dinosaurs 65 million years ago was caused by a meteor impact on Mexico's Yucatan peninsula--which spread clouds of dust around the earth that blocked the sun. Here's what we currently know about the K/T Extinction Event.
Did the Dinosaurs Really Go Extinct?
Cryptozoologists believe the world may still harbor living, breathing dinosaurs--for example, the Loch Ness Monster is often adduced as a marine reptile or aquatic sauropod. Here's a peek into the reasoning of these "experts", and why they're almost certainly 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?", and what effect did it have on the ensuing Triassic period?
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 and prosper into the Cenozoic Era. 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 were actually responsible for the deed. Did volcanoes, rather than meteors, cause the K/T Extinction?
The Top 10 Candidates for De-Extinction
De-extinction is the process by which scientists hope to clone long-extinct animals and reintroduce them into the wild. Here are ten recently extinct mammals, birds and amphibians that are ripe for de-extinction, assuming we can clear the technical hurdles.
De-Extinction - The Resurrection of Extinct Animals
With new advances in DNA technology, it may be possible to "de-extinct" animals that disappeared off the face of the earth hundreds, or even thousands, of years ago. But just because de-extinction is achievable, does that mean we should do it?
De-Extinction in 10 (Not So Easy) Steps
Do you want to know what, exactly, is involved in de-extincting a long-vanished species and reintroducing it into the wild? Here's what the process looks like in 10 easy (or not-so-easy) steps, ranging from harvesting intact DNA to gestating a viable fetus.