 When the warheads in the submarine detonate, however, the group finds themselves transported through time by a "Sario rip", to the era of dinosaurs (the Late Cretaceous period, to be exact).Rachel and Tobias are eaten by a kronosaurus and believed dead by the other Animorphs.The other Animorphs make their way to land, where they encounter a number of dinosaurs, including the Tyrannosaurus rex, which attempts to eat Jake.