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T. rex wasn't that smart after all. Its intelligence was more on par with a large crocodile

Previous estimates of T-rex's brain power were vastly overestimated.

T. Rex, king of the dinosaurs -- here's what makes the tyrannosaur so fascinating

It was big and fearsome, but what other mysteries does T. Rex hide?

Research suggests T. rex had a cooling system in its head

The Tyrannosaurus rex, the most feared and iconic of all the dinosaurs, had a cooling system in its skull that allowed him to deal with prehistoric heat and humidity. The new study from scientists in Missouri, Ohio, and Florida, challenges previous beliefs about this cranial structure. T. rex, known as one of the largest meat-eating […]

Two new dinosaurs found in Thailand are smaller, cuter, but still deadly cousins of the T. Rex

They might also rewrite the history of megaraptors as we know them.

This is what T. rex probably looked like as a baby

CUTE AGGRESSION!

New species of small tyrannosaur ancestor sheds light on T. Rex's path to becoming 'King of the Dinosaurs'

The first tyrannosauruses were quite small.

Nanotyrannus and the Skeptical Criteria for Species

A historical example of how classifying a species can sometimes be very confusing.

Researchers investigate intriguing 'baby' tyrannosaur fossil

It's an extremely well-preserved fossil, but for now, it raises more questions than it answers.

T. Rex's tiny arms weren't meek after all -- new research says they were meant for 'vicious slashing'

T. Rex's forearms don't look that clumsy anymore.

Fossil Friday: Sciurumimus albersdoerferi, the single-fossil theropod

There's only one fossil of this dinosaur that we ever found -- and you're looking at it.

Brain before brawn: T-Rex first evolved a clever brain

T. Rex grew its way to the top of the food chain. To get there though, the dinosaur first had to evolve a big brain with keen senses, a new research suggests.

Paleontologists follow the trail of tyrannosaurs: rare multi-step tracks revealed

When he was only 13 years old, Scott Persons was led to a sandstone slope right next to the Glenrock Paleon Museum, Wyoming. The museum's curator gently brushed away at an intended spot and soon enough three uncanny dinosaur tracks revealed themselves to Persons, who was dumbstruck at the sight. Many years later, Persons -- now a doctoral student in paleontology -- returned to the site, studied it extensively along with colleagues and made a scientific report of the three dinosaur tracks carved in the stone by the eons. As it turns out, these findings belong to a tyrannosaur and are absolutely unique.

New evidence that T-Rex was indeed a cannibal

Tyrannosaurus was one of the fiercest land predators ever, despite claims that the dinosaur was mostly a scavenger. While this is true to a degree, T-Rex was most definitely a hunter at heart even though the predator might have munched on a carcass or two from time to time. Apparently, the dinosaur even ate its own kind, a new study suggests.

T-rex and other top dinosaur predators had serrated teeth to butcher their prey

A novel analysis reveals T-rex and other theropods – the top land predators that dominated the planet for no less than 165 million years – had teeth of unrivaled complexity. The long and powerful teeth were serrated like steak knives to disembowel prey easily, while on the inside tissue supported the teeth for maximum resistance against […]

Turkey Sized Vegetarian T-Rex Discovered

A seven year old has discovered the fossil of a turkey-sized dinosaur that roamed South America over 140 million years ago. The tiny dinosaur was related to T-Rex, but had few similarities to it; aside for its size, the dinosaur was a vegetarian, munching on plants instead of terrorizing other creatures.

Fossilized footprints reveal a clumsy dinosaur

Crossing  the riverbed of Carrizo Creek in Oklahoma, a series of tracks made by a two-legged dinosaur have been preserved in time for 150 million years. The tracks reveal a most clumsy scene, as the dinosaur in question slipped for a second before going back to his beaten path. When first analyzedin the 1980s, paleontologists […]

It's settled - Tyrannosaurus Rex hunted for live prey

The king of all predators, the godfather of his time, la creme de la creme – Tyrannosaurus Rex (T. Rex) was the ultimate predator… or was he? When Jurassic Park came out, even though the cinema crowd went wild as T. Rex smashed and ate velociraptors (and the occasional human), at the time, there was […]

Tyrannosaurus skeleton auctioned, despite controversy and court order

I’ve studied geology for four years – and I still haven’t had the chance to see a T-Rex skeleton; this is just one of the reasons why I believe such valuable fossils belong in museums, where they could serve the higher purpose of education, and not in some personal collection, where they serve only the […]

T. Rex relative had an extensive plumage - biggest feathered dinosaur ever found

A remarkable paleontological discovery surfaced from China recently, after scientists reported they’ve found fossils belonging to the Yutyrannus huali,a very close relative of the Tyrannosaurs Rex, which prove that its entire enormous bus-sized body was covered in feathers. This officially makes it the biggest animal covered in feathers ever found, and also forces paleontologists to rethink […]

T. Rex's bite was the strongest ever of any terrestrial being

Although the T. rex isn’t the largest carnivorous dinosaur to have roamed Earth, a new study that used computer models to reconstruct its skull muscles reveals that his bite was the most powerful one ever of all terrestrial animals, extinct or living. Biomechanics experts at Liverpool University, UK,  used laser scanners to digitize the skulls […]

Carnotaurus had puny arms, incredibly powerful tail

If you think that T-Rex had laughable front limbs, you’re in for a treat: even he would be amused by upon such puny arms. However, the shortcomings Carnotaurus had more than made up for its very muscular and powerful tail, which made it one of the fastest hunters to ever walk the face of the […]

T-Rex's reputation is restored - he was a hunter

The fascination with T. Rex goes back a really long time, and whether you're a world class paleontologist, or some average Joe who loved Jurassic Park, T. Rex was definitely on your mind at some point. The biggest and most fierce hunter there was - or was he ? Scientists have been debating his diet for half a century, with one side claiming it fed by scavanging, while the other one was defending the dinosaur as a fearsome hunter.

Carnivorous humpback dinosaur surprises paleontologists

About 125 million years ago, these hunchback dinosaurs roamed today’s central Spain, measuring approximately 6 meters and feasting off of smaller animals of all sorts. However, what’s really surprising about the dinosaurs is its “hump”, a body structure never before seen in dinosaurs. A recently exposed skeletal structure revealed some unique features that has researchers […]

Fossils of sea "monster" make T-Rex seem cute & fluffy

Well, that’s a bit of a stretch, but according to scientists, this giant fossil sea creature known currently just as “Predator X” had a bite that makes T-Rex seem “feeble”. This 15 meter long dinosaur had a crushing 33,000 lbs (15 tonnes) per square inch bite force. “With a skull that’s more than 10 feet […]