@@dylanmcgln I could hear the chirping noises of dolphins in the second movie so I'm guessing they must have went to a water amusement park with tamed animals for the water part of the movie. they could have used tamed killer whales for the Tulkun?
Both the sound bites from the T Rex and Velociraptor were created by Gary Rydstrom (who would go on to win his third and fourth oscars for his work on Jurassic Park (1993))