Human-dinosaur hybrids, anyone? After Joe Johnston's Jurassic Park III in 2001, there was meant to be, at some point, a Jurassic Park IV. Scripts were offered to Spielberg and then rejected numerous times, with William Monahan and John Sayles' effort working on the idea of dinosaurs-on-the-mainland combined with human/dinosaur hybrid soldiers that could use guns and carry out simple tasks.Now artwork has surfaced online that reportedly originates with ILM's Andrew Cawrse and concept artist Carlos Huante, revealing just how far down the pipeline this pretty outrageous idea went.