Nat Geo Explorer and Paleontologist Paul Sereno takes us inside the University of Chicago's Fossil Lab to uncover all kinds of dinosaur fossils, from ones you could cradle in your arms to a T. rex that probably never knew what hit it. Learn more about Sereno and his team's work to uncover fossils like these: https://on.natgeo.com/45C2Raz Explore the World with National Geographic subscriptions: http://natgeo.com/ytngmagazine ➡ Subscribe: http://bit.ly/NatGeoSubscribe And check out more National