Walter Alvarez and the KT Boundary Story
Channel: chronozoom
Date: 2014-08-22

Walter Alvarez talks about the Dinosaur Impact at the K-T Boundary in Gubbio, Italy with the founding members of the International Big History Association. 

The Alvarez hypothesis posits that the mass extinction of the dinosaurs and many other living things during the Cretaceous–Paleogene extinction event was caused by the impact of a large asteroid on the Earth.

saekow@berkeley.edu