There is only ONE dinosaur sound scientists are confident about… and it’s not a roar. It’s worse. 🦖 This is the real voice of Parasaurolophus — a dinosaur that used its long, hollow crest like a living instrument. Air flowed through it, producing deep, haunting low-frequency calls that could travel for kilometers through prehistoric forests. Imagine standing in the Late Cretaceous… The ground is still. The air is heavy. Then a bone-chilling horn-like echo rolls through the trees — not loud, not