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 of Adventure and Universal Studios Japan under Jurassic Park River Adventure. A river rapids ride version of the attraction, Jurassic Park Rapids Adventure, opened at Universal Studios Singapore in 2010. Among the guests in attendance at the ride's grand opening celebration in 1996 were film cast members Jeff Goldblum, Ariana Richards, and Joseph Mazzello. Steven Spielberg also attended the opening, but requested that he be let off of the attraction before the drop. On August 12, 1996, Universal launched an online game titled "Jurassic Park The Ride Online Adventure", to promote the ride. On May 10, 2018, Universal Studios Hollywood