Paul Sereno is a paleontologist at the University of Chicago and the president and co-founder of Project Exploration. Paul Sereno teaches the world about its evolutionary past through what he calls "adventure with a purpose." His travels have brought him to discover important links in the evolution of life on earth, such as his discovery of the world's largest crocodile.

This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at http://ted.com/tedx.