Lawrence Berkeley National Laboratory
Berkeley Lab: The Fruitful & Inventive Mind of Scientist Luis Alvarez
This article, reprinted from the fall 1979 LBL News Magazine, was written about Dr. Luis Alvarez and his part in the study of geological sediments and the great extinctions.
PBS
Pbs Learning Media: Mammals Get Their Chance
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.
Other
Catastrophism and Mass Extinctions
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.
Australian Broadcasting Corporation
Australian Broadcasting Corporation: News in Science: Dinosaur 'Feathers' Are No Such Thing
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."
Other
Dinosaurs' End, the Gravitational Hypothesis
The author of this site feels that there are too many problems with the current theories for why dinosaurs became extinct. He believes that his gravitational hypothesis is the correct answer, the dinosaurs suddenly got too heavy.
Curated OER
Who Dunnit to the Dinosaurs?
"One of the great mysteries in science is the extinction of the dinosaurs at the end of the Mesozoic Era some 65 million years ago. Who (or more likely what) caused it is unknown and a subject of great debate." Many theories are touched...
Famous Scientists
Famous Scientists: Luis Alvarez
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.