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Dinosaurs ruled the Earth millions of years ago, and while many were peaceful herbivores, others were some of the most dangerous animals to ever walk the planet.

During the Late Cretaceous period in what is now Argentina, one beast ruled them all – the Giganotosaurus or 'great southern lizard'. At 43 feet (13m) long, Giganotosaurus was bigger than the T-rex.

'I don’t know. I was really quite shaken—even though I shouldn’t have been—by those images of Elon Musk looking up at Trump.' Credit: Axelle/Bauer-Griffin/FilmMagic via Getty / MCD Ten ...