User blog comment:Jhayk' Sulliy/Jurassic Park 4 Release Date Announced!/@comment-11047508-20130112235501/@comment-11047508-20130113131138

This is why I think Terra Nova can be a much more succesfull franchise than JP. In Jurassic Park the dinosaurs are created by humans. As a result humans have control over them. And if not control, humans know exactly where and with how many they are. For the plot it is needed that something exciting happends. In Jurassic Park this can only happen if the humans make a very unrealistically stupid mistake. After 3 films I don't buy that anymore.

In Primeval or Terra Nova humans NEVER had control and can never have it. In Primeval time gates to any era can open anywhere. In Terra Nova, humans live behind fences, trying to keep dino's out. Furthermore, other humans are the real enemies in both plots.

Because of this difference, Primeval has a story that can continue for many episodes. Whereas Jurassic Park gets old soon.