Origins of dinosaur sounds in Jurassic Park

Jurassic Park was thought to have some great sound effects for their dinosaurs, they made sounds that could have been straight from the mouths of the 65 million year old creatures. But what were these sounds as Jurassic Park sound director Gary Rydstrom said "It’s somewhat embarrassing, but when the raptors bark at each other to communicate, it’s a tortoise having sex. It’s a mating tortoise! I recorded that at Marine World … the people there said, ‘Would you like to record these two tortoises that are mating?’" Yep the sounds of the raptors are two tortoises getting down and dirty, I don't have anything else to say about that.