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• Tyrannosaurus rex may have been three separate species, say scientists

Tyrannosaurus rex may have been three separate species, say scientists

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Researchers have controversially argued there is enough variation in samples to point towards three species of Tyrannosaur, not one.

Tyrannosaurus rex may have been three species, scientists claim

How did T. rex get such keen, predatory senses? New tyrannosaur offers hints.

T. Rex might actually be three separate species: study

T rex's keyhole eye sockets helped its bite, research suggests, Dinosaurs

Dominant Dinosaur That Lived Before T. rex Discovered - Field Museum

They Want to Break T. Rex Into 3 Species. Paleontologists Aren't Pleased. - The New York Times

T. rex may have had lips like a modern lizard's

Is T. rex really three different species? There's debate.

Tiny tyrannosaurs are separate species, not baby T. rexes, says study

Scientists reveal what T-Rex actually sounded like in eerie audio