“The fearsome roar of Tyrannosaurus Rex as portrayed in film has left many a cinema-goer quaking in their seat.
But new research suggests the king of the dinosaurs made a far more sinister sound.
For a new BBC documentary, naturalist Chris Packham visited Julia Clarke, professor of Vertebrate Palaeontology at the University of Texas, to test out a the theory that dinosaurs actually sounded more like birds and reptiles, than today’s predatory mammals.” – Source