London, May 19 (ANI): Scientists have found the most terrifying gang on Earth - Tyrannosaurus rex.
They claimed that the top predator dinosaur and his relatives hung out and hunted in bloodthirsty gangs, which included young and older members.
T Rex is often portrayed as a dangerous but dim-witted loner, but new evidence shows that the massive creatures were highly intelligent and liked to hunt together.
The new theory comes after experts studied skeletons of T Rex's cousins - Tarbosaurus - from 90 sites in the Gobi Desert, Mongolia.
Most experts have assumed that pack hunting evolved with the rise of mammals. Dinosaurs were not thought to have had enough intelligence to behave like modern-day wolves.
But according to lead researcher Professor Philip Currie, from the University of Alberta, tyrannosaurs had all the necessary qualifications for pack hunting, including speed, keen senses and a highly developed brain.
Further research involving CT scans of tyrannosaur skulls indicated highly developed senses for hunting, and enough brainpower for co-ordinated pack behaviour.
Three-dimensional tyrannosaur skull casts showed that the creatures' brains were roughly three times larger than those of other dinosaurs living at the same time.
Currie believes tyrannosaurs probably hunted in groups with adults and juveniles adopting different roles.
"Tyrannosaurids, I believe, were far more complex and more dangerous than we ever could have imagined," said Currie, whose theory and research are the subject of a new documentary film, Dino Gangs.
"I believe these tyrannosaurids hunted in deadly, bloodthirsty packs. It's definitely time to rewrite the dinosaur books," he added. (ANI)
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