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The
was led by a dinosaur researcher at the Fukushima Museum in Japan. He did many
on the shape of the fossilized voice box. He compared it with the voice box of
, crocodiles and turtles. He now has an
of what the voice box
looked like. The muscles controlled the
of the voice box. The research may mean that
like Jurassic Park got it wrong. Tyrannosaurus rex
made more of a tweeting sound, like a
. Hollywood may have to change its scary roars in
dinosaur films to a tweet-tweet sound.