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Bozeman Science
Speciation and Extinction
Paul Andersen details the evolutionary processes of speciation and extinction. Stickleback evolution in Lake Loberg is used as example of rapid speciation. Adaptive radiation is illustrated using the Hawaiian honeycreeper. A brief...
Howard Hughes Medical Institute
The Day the Mesozoic Died
A dynamic, three-part feature explores what caused mass extinction of the dinosaurs at the end of the Cretaceous period. Computer animations, interviews, and on-site footage from around the world divulge evidence that it was the K-T...
Curated OER
Origin and Evolution of Life, Part 1
Start a class exploration explaining the origin of evolution and life on planet Earth with the first of a five part series. Episode one examines the KT Boundary and what it meant in terms of mass extinction. It explores evidence and keys...
Curated OER
Asteroid Attack - What Really Killed the Dinosaurs?
How do scientists know what really killed the dinosaurs? This clip explains what the KT boundary is and what it means in relation to dinosaur extinction. This clip is very short and seems to be a part of a larger BBC special on dinosaur...
Curated OER
Asteroid Attack - Where's the Evidence?
What evidence do we have to prove the theory that a huge asteroid led to the extinction of the dinosaurs? This two-minute clip gives a brief look at the evidence geologists have found to prove their theory.