Unfortunately, with dinosaurs, we haven't had enough specimens to determine how much variation there is within a species.
Jack HornerThe chicken is a dinosaur. I mean, it really is. You can't argue with it, because we're the classifiers and we've classified it that way.
Jack HornerAlmost all of my graduate students say that they got interested in dinosaurs because of 'Jurassic Park.'
Jack HornerI'm trying to figure out the biology of dinosaurs and what they were like as living creatures.
Jack Horner