Grant wakes up to find Lex feeding a baby triceratops. Arnold briefly shuts down the system to try to get the phone lines back up. Grant and the kids leave the shed and are caught in a stampede of hadrosaurs who are running away from a tyrannosaur. The three seek shelter on a small rocky outcropping and then climb a tree.

Grant and the kids go to a dock shed where they find a raft and a tranquilizer gun. On their way out they realize that the tyrannosaurus is sleeping right next to them. They inflate the raft and paddle out into the lagoon. Lex sneezes, awakening the t-rex. It follows them into the water, swimming after them like a giant crocodile. Just as it seems ready to snatch them up, however, it is distracted by the juvenile t-rex, which is trying to steal the sauropod carcass the larger t-rex had left ashore.

Analysis

The first character to die by the jaws of a dinosaur is Nedry, who, as the novel's primary villain or henchman to this point, makes us feel a sense of retribution rather than shock at his death. The first major dinosaur attack occurs when the tyrannosaurus attacks the Land Rover in which the children are riding. Crichton makes the children the target out of this first attack to heighten the tension and suspense by playing on our sympathies. He takes this suspense a step further by narrating much of this section from the perspective of Tim, compelling us to imagine what it is like for an eleven-year-old to be assaulted by a full-grown tyrannosaurus rex.

While Tim is a good narrator—exceptionally intelligent and quick-thinking, interested in dinosaurs, and very mature for his age—Lex is somewhat younger and far less mature. She grows bored of the tour quickly, constantly asking if anyone will play catch with her. Regis usually complies, taking on a sort of temporary father role for her. When Regis flees the Land Rover, leaving the kids to fend off the t-rex themselves, Lex is quite scarred by the abandonment. Later, as Grant takes on the role of surrogate parent to Tim and Lex and the three escape into the park, Lex begs him Grant to leave them alone even for a minute. This request foreshadows several upcoming occasions in which Grant has no choice but to leave the kids alone for a brief time.

The fact that the first big dinosaur attack happens to Tim and Lex is, however, more than simple coincidence or plot device. In light of the idea of the hupia—the mythical ghosts that kidnap children—from the first section of the novel, we see a deeper significance. The dying guard's talk about hupia earlier in the novel links the hupia to the word "raptor" and the local lizard attacks. Now the connection between hupia and the dinosaurs of Jurassic Park is obvious: the dinosaurs seem to instinctively attack children. Although the idea is never brought up in the text directly and no possible explanation is ever offered, this is a technique Chrichton uses to vilify the dinosaurs. Since the novel's major conflict is the threat of these dinosaurs attacking people, the dinosaurs appear especially vicious when they target defenseless children.

The connection between the hupia and the velociraptors is particularly important. When the park visitors are in the nursery, the baby raptor is drawn to Tim. Later in the novel, when the raptors get loose, several of them go after Tim and Lex. As evidence grows that raptors have escaped to the mainland, the prospect of a whole population of these intelligent, baby-hungry beasts living in the jungles of Costa Rica appears especially frightening.