Paleontologist Jack Horner has been laughed at before. When he said dinosaurs were really birds not reptiles, the idea was rejected but now it's the accepted view. So now he's planning to really make a dinosaur and at least some people are taking him seriously. Horner will be speaking at a public lecture Tuesday for the Society of Vertebrate Paleontology.
GUEST
Jack Horner, paleontologist, University of Montana
