Jurassic Park III dinosaur-bird connection, said the feathers quills added to the "Velociraptor" for "Jurassic Park III" "looked like a roadrunner's toupee", but conceded that feathers are difficult subjects for computer animation and speculated that "Jurassic Park IV"'s raptors would have more realistic with plumage. In 2002, Crichton said he had not watched the film. A teaser trailer was released online in September 2000. Universal avoided excessive early marketing to prevent a possible backlash; the studio believed awareness of the film was already sufficient. Marketing began in April 2001, three months before the film's release. The first footage from the film was aired
Jurassic Park: The Ride adult Stegosaurus and its young. Two Compsognathus were seen fighting over an empty popcorn box before the boat entered Hadrosaur Cove, where a Parasaurolophus poped up in front of the raft, and sprayed water at the riders. The Jurassic Park Animal Control called, revealing that the Parasaurolophus threw the raft off course, causing it to enter the raptor containment area, which was shown to be heavily damaged. Riders then encountered what appeared to be an abandoned tour raft, where a Dilophosaurus was seen eating the remains of a poncho. A nearby motorboat was also abandoned, sent by Jurassic Park Animal