He slowed down various animal noises—from a baby elephant’s squeal to an alligator’s gurgling to a tiger’s snarl—to give the T. rex life. The sound of the king (or queen, as it were) of dinosaur’s breath was the sound of air escaping a whale’s blowhole. Rydstrom even used his tiny Jack Russell terrier, Buster, to create the sound of a hungry T. Rex killing a fleeing Gallimimus.
