Dinosaurs replace their teeth throughout their life. And T. rex replaced all of their teeth every year.
Jack HornerUnfortunately, with dinosaurs, we haven't had enough specimens to determine how much variation there is within a species.
Jack HornerWhen I was growing up in Montana I had two dreams: I wanted to be a paleontologist and I wanted to have a pet dinosaur and so that's what I've been striving for all of my life.
Jack HornerThe worse the country, the more tortured it is by water and wind, the more broken and carved, the more it attracts fossil hunters, who depend on the planet to open itself to us. We can only scratch away at what natural forces have brought to the surface.
Jack Horner