The Indominus rex debuted in Jurassic World in 2015 as a genetically engineered hybrid created for the park, combining T. rex, Velociraptor and other species. Its vocalisations were designed as a mix of animal recordings to sound unfamiliar and intelligent compared to a normal dinosaur roar. Clips of the roar were later ripped and shared on soundboards and in fan edits, where the short, recognisable blast became a go-to dinosaur sound for memes, gaming montages and creature reveals online.