Actors come and go, but the “Jurassic” franchise roars on, thanks to Steven Spielberg’s 1993 original, “Jurassic Park,” which made dinosaurs the true stars of the show. The tradition continues with “Jurassic World: Fallen Kingdom,” the fifth flick in the series. Out Friday, it features 20 species of dinosaurs, including the velociraptor from 2015’s “Jurassic...