Showing posts with label Tyrannosaurus. Show all posts
Showing posts with label Tyrannosaurus. Show all posts

The T.Rex had feathers?

Probably yes, especially when the animals were young. When the specimens were adults, the feathers have disappeared almost completely concentrádose in line, arm and other small areas of the back.

Experts think that T.Rex could have had feathers when they were young in order to stay warm, it would be a fine layer of downy feathers. When T.Rex reached adulthood, their sheer volume would keep the heat efficiently because, in general, bulkier bodies hold heat better. A large Tyrannosaurus certainly a feather cape hinder him when refrigerated ... especially in an era that was believed to be about 6 degrees higher than today. For example, the body of modern elephants generate a large amount of heat, if we add a warm climate, it is hard to imagine that dispense with an insulating layer (either feathers or hair).

Well, if I ever see Steven Spielberg will say that, apart from that the film should be called "Cretaceous Park" by T.Rex would be missing a few feathers.

But ... Why is thought to have feathers?

The fact attributed feathers T.Rex was not formed spontaneously when a paleontologist morning wake up ... no. The idea that the "Tyrant of the saurian" had feathers is suggested by the appearance of the remains of an ancestor, discovered this year in China, and notably had feathers. But not a few, was full of feathers. It was called "Yutyrannus Huali" or Yutyrannus whose name means "beautiful feather Tyrant."

Another example was the Dilong, a dinosaur discovered in 2004 that also keeps a relationship with the T.Rex (are of the same family). This was also covered with feathers.

The Tyrannosaurus, Velociraptor, the Dilong, the Yutyrannus, and many more ... apparently was more common than we think: prehistoric carnivorous dinosaurs had feathers.

Triceratops vs T-rex.

The legendary battle between Triceratops and T. Rex, maybe a little classic, this confrontation itself may have occurred in antiquity, in reality, and this gives a particularly morbid.

In old movies, in books for children and television shows have used this resource, this battle, as an incentive to attract attention, create suspense and tension. In some cases, the T. Rex killed the Triceratops and in other cases it was the other way around ... But in reality ... Who would win both?

This video is a movie made in 1925, was called Lost World. The Triceratops was heavy, slow and with horns that seem to exceed 50 cm. But it was not.


Lengths up to 10 meters long (30 ft).
Weight: up to 12 tons (26.000 lb).
Horn of 1 meter length each. (3 ft)
Height: up to 3 meters. (9 ft)
Speed ​​of 35 km / h


Lengths up to 13 meters long. (40 ft)
Weight: 10 tons. (20.000 lb)
Height: 4 meters. (12 ft)
Mouth with a strong bite.
Speed ​​40 km / h.


There are many things to consider. The powerful bite of T. rex and its poisonous saliva, and its form of attack. The speed of Triceratops that if envistiera to 35 km / h, could go through with his horn the body of T. Rex. The robustness of the body and a collar bone that covered his neck and massive head 2 meters of the Triceratops.


Giganotosaurus is a genus of carcharodontosaurid dinosaur that lived 98 to 96 million years ago during the early Cenomanian stage of the Late Cretaceous Period. It is one of the largest known terrestrial carnivores, slightly larger than Tyrannosaurus, but smaller than Spinosaurus. Its fossils have been found in Argentina.
The longgest meat-eating dinosaur yet discovered is Giganotosaurus, a 44-46 ft (13.5-14.3 m) long behemoth, who weighed about 8 tons and stood 12 feet tall (at the hips). It walked on two legs, had a brain the size of a banana, and had enormous jaws with 8-inch long serrated teeth in a 6-foot (1.8 m) long skull.
G. carolinii was slightly larger than T. rex, but had a brain only about half as big as those of tyrannosaurids. The teeth of Tyrannosaurus were longer and wider, but more variable in size. The teeth of Giganotosaurus were shorter, less variable and narrower than those of Tyrannosaurus, and were more adapted for slicing flesh. A well-developed olfactory region means that it probably had a good sense of smell. Its skull, although large, had a slender build.

Giganotosaurus stalking to Titanosaurius
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