How deadly were dinosaurs? What did they eat? Did humans live alongside them? How did they die out? More importantly, who would win if a T-Rex fought three Velociraptors? Paleontologist, professor and ...

Some of the roads that we drive every day follow the routes of much older trails. STEVE INSKEEP, HOST: Oh, I've heard about this, Leila. People say Broadway in New York City follows an old trail, for ...