The filmmakers from Twister slowed down what animal’s sound to create the noise of the tornado?

When we lost Philip Seymour Hoffman, it was a blow to film as a whole. His acting skills were among some of the greatest to ever do it.

Yet I'm not sure anyone was watching Twister and thinking, "That dude is going to become one of the great actors of our time." He played Dustin Davis, the extremely-of-the-90s-dude who talks like a surfer and thinks anything "extreme" is really cool that was in every movie from roughly 1993 until 1998.

And damn it, he was just as committed to that as any other role.

But that's material for a trivia question some other time. Twister, at the time (1996), was seen as a masterclass in visual and audio effects. Even today, it really feels like you're inside the tornado. To create that feeling, audio engineers used an animal's sound — which sound was it?