Dinosaurs' Puzzling Backbones

How in the world did 170,000 pound dinosaurs walk around without collapsing under their own weight? What in YOUR world is wowing you? Join Guy Raz and Mindy Thomas for our first ever Thursday Edition of Wow in the World! See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.