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
Raptor Red such as chimpanzees and alligators. Bakker received a large advance for the novel from Bantam Books, rumored to be in the six-figure range. The book was prominently featured at the American Booksellers' Convention in Chicago, alongside Michael Crichton's "The Lost World". Coverage of the event noted that both novels were on the trailing end of the dinosaur fad fueled by "Jurassic Park", as the new trend in American books was shifting toward politics in the aftermath of the 1994 US elections. "Raptor Red" was initially published as a mass-market paperback and hardcover book, and was later released as an audiobook