Tyrannosaurus rex (T.Rex) was only able to crunch the bone of its unfortunate prey thanks to its stiff lower jaws, a new study shows.
Perhaps the most fearsome of all the dinosaurs, T.Rex chomped through bone by keeping a joint in their lower jaw steady like an alligator, it reveals.
Scientists had previously assumed T.Rex had a flexible jaw like a snake to keep struggling prey in their jaws, but the new analysis shows the lower jaw was kept level and sturdy.
The experts used computed tomography (CT) scans of dinosaur fossils and modern reptiles to build a detailed 3D model of the T.Rex jaw.
Tyrannosaurs may have hunted in packs like wolves, a new study says Apr 25, 2021, 10:58 AM
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A tyrannosaur s skull found two miles north of the “Rainbows and Unicorns Quarry” on February 26, 2019.
BLM photo courtesy of Dr. Alan Titus
New evidence suggests that Tyrannosaurus Rex hunted as a pack animal.
The T. Rex remains were found in the Grand Staircase-Escalante National Monument in Utah.
Scientists had previously thought that the T. Rex brain was too small for this kind of complex behaviour.
Tyrannosaurs were probably social animals who hunted in packs, according to research from the University of Arkansas published this week.
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This giant dinosaur is thought to
have traveled from Europe to Asia on two landmasses, a prehistoric bridge, which allowed animals and humans to travel to other territories before ocean waters cut it off.
Rebbachisaurid dinosaurs are typically found in South America, Africa and Europe. The discovery of this D. Kingi in Asia is surprising to paleontologists. It would have lived 90 million years ago.
spinosaurus:
paleontologists to this day are bewildered by this aquatic giant.
A 2020 study hypothesized that this fish-eating dinosaur might have used its fin-like tail to propel itself underwater to hunt its prey. A more recent study compares its behavior to that of a heron, wading in shallow waters for its prey. Paleontologists have been debating the behavior of this creature since 1915, when it was first discovered.
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