What happened was, I had done a screenplay about a young graduate student who genetically engineered a single dinosaur from fossil remains. And the screenplay didn't work out. It was too fantastic an event to be kept secret, which was what happened in that story. And I couldn't really... The problem always with these creatures is that once you have them, then what do you do with them? I mean, what is the story after they exist? It wasn't very satisfactory in that way, and I gave it up. The most obvious and best known is Alan Grant, who is Jack Horner, who was an advisor on the film, eventually.