The guy who won two Oscars for his sound work on "Jurassic Park" says that when the velociraptors are communicating with each other, it's actually the sound of TORTOISES HAVING SEX. And one of the sounds he used for the T-Rex came from his Jack Russell terrier. He also used a bunch of other animals for the different dinosaurs . . . including a male dolphin in heat.
GARY RYDSTROM won two Oscars for his sound work on "Jurassic Park". And that work included . . . RECORDING TORTOISE SEX.
Rydstrom had to come up with sounds for all the dinosaurs, which isn't easy since nobody knows what dinosaurs actually sounded like. He ended up using a lot of animal noises, including the tortoises.
He says, quote, "When the velociraptors bark at each other to communicate, it's a tortoise having sex. It's a mating tortoise.
"I recorded that at Marine World . . . Tortoises mating can take a long time. You've got to have plenty of time to sit around and watch and record them."
Here's another one that might surprise you: Some of the noises that come out of the most ferocious beast of them all, the T-Rex, were actually produced by Rydstrom's JACK RUSSELL TERRIER.
And he got that idea because of the way the T-Rex grabbed things in his mouth and shook them . . . just like dogs do. He says, quote, "Every day I would see my dog playing with the rope toy and doing exactly that, pretending like he's killing his prey."
(By the way . . . Rydstrom used audio of that same terrier eating dog food in "Terminator 2" . . . for the crunching sound when the T-1000 robot spikes a man in the eye.)
Other animals Rydstrom used sounds from included horses, geese, owls, donkeys, cows, a baby elephant, swans, baby foxes, rattlesnakes and a MALE DOLPHIN IN HEAT.