One of them is considered to be one of the deadliest apex predators to ever walk the Earth – the other is a palm-chomping herbivore. An easy fight, no?
But in 1997, palaeontologists discovered a partial triceratops fossil that had its horn bitten off (with the bite marks matching a T.rex). It later healed, suggesting that at least some triceratops survived encounters with the theropod. In other fossils, Tyrannosaurus bite marks have been found on the frills that protected the triceratops' neck, providing further evidence that these two beasts once fought each other.
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However, a long-standing debate among palaeontologists is just how deadly Tyrannosaurus rex really was. It has an infamous reputation as an apex predator, but some argued that it was purely a scavenger – and there is even evidence to suggest that a fairly speedy human could have outrun a T.rex. Most scientists believe it was probably somewhere between the two.
So, with the triceratops' sharp horns and a slightly-less-than-deadly T.rex – would these two dinosaurs be willing to fight to the death?
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Main image: a Tyrannosaurus rex faces off against a Triceratops in Walking with Dinosaurs. Credit: BBC Studios/Lola Post Production