This UC Berkeley site extensively covers the death of the dinosaurs. It includes history, theories, invalid hypotheses, and current arguments.

There is plenty of information about dinosaurs here for students doing research. There are a fair number of ads but they are mainly related to dinosaurs. Besides fact pages for hundreds of dinosaurs, you will find information about...

In this video segment adapted from NOVA, animations of an asteroid hitting Earth are used to illustrate this widely accepted theory of dinosaur extinction and the resulting conditions that favored mammals.

An overview of Walter and Luis Alverez's theory that a large meteorite crashed into earth causing huge tidal waves, showers of ash, and an enormous dust cloud.

From ABC News in Science, this article explores the validity behind current findings and research on the dinosaur to bird theory. The research is conducted on the Sinosauropteryx, which is a turkey-sized dinosaur with "proto-feathers."

Learn more about the life of the scientist that proposed the theory of mass extinction of the dinosaurs due to an asteroid or comet in this article. Read all about the life and scientific discoveries of Luis Alvarez.