Newbold says flying and marine reptiles were big community demands, and as we learned from Jurassic World, bowing to pressure for more exciting breeds always ends well. We splurge our park’s budget on a lagoon and hatching a Mosasaurus, a mashup of whale and crocodile, and it pushes us from a two-star to a five-star attraction. The challenge then lies in extending the lagoon. “Marine reptiles still have territory and needs, and we have different species that might need, or not like, a certain number of other species in their territory,” Newbold says. “I wanted parity across all dinosaur types, because I want players to deal with the same problems among all of them.” No free rides at Jurassic World.