A short essay about introducing a Tyrannosaurus rex is between 250 and 300 words

A] In 1902, Barnum Brown discovered the first Tyrannosaurus rex fossil in Montana [USA]. Tyrannosaurus rex had a big head. Tyrannosaurus rex had short forelimbs and two fingers on each hand; The hind legs are large and powerful, with three toes on each foot.

Each finger and each toe is accompanied by a claw. Tyrannosaurus rex had a thin, stiff strip with a pointed tail. It has a total of 60 teeth, each of which is 9 inches long and all of them are sharp.

When a tooth is lost, a new tooth erupts. The Tyrannosaurus rex walked on two legs and was able to run very fast, reaching speeds of up to 30 miles per hour. It has a good sense of sight and smell.

The Tyrannosaurus rex had a big head, and it was a smart dinosaur. It lived alone and sometimes with another Tyrannosaurus rex. We don't know if they take care of their children.

Tyrannosaurus rex may be one of the largest carnivorous dinosaurs living on record on Earth. It is the latest of the carnivorous branches, and it has sixty sharp teeth with serrated edges, some up to 18 centimeters long. It has a large upper and lower jaw; With a mere length of a meter, it might have been able to eat a whole person—if there were humans around at the time.

Tyrannosaurus rex stands tall more than two stories tall and can swallow a cow in one bite, and the strange thing is that Tyrannosaurus rex has very short front legs, not much like a human arm, so some scientists believe that Tyrannosaurus rex cannot hunt and can only eat dead corpses. The Tyrannosaurus rex was a behemoth, and its entire body seemed to be designed to attack other dinosaurs; The head is long and narrow, the cheeks are muscular, the neck is short and thick, and the body is strong. The hind limbs are strong and stout, the tail is not too long, it can be straightened back to balance the body, and the mouth is wide open, and there are sharp teeth about 15 cm long......It's just that the forelimbs are disproportionately small, and there are only two weaker fingers.

Tyrannosaurus rexes were once thought to be bulky and sluggish animals, but the latest research suggests that Tyrannosaurus rex could run at speeds of more than 40 kilometers per hour, and if that were the case, there would be no prey to escape from it.

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1. The Tyrannosaurus rex is 12 meters long, about 5 meters tall when upright, and weighs tons. It has a large head and a short neck, and its huge head has many holes to reduce the weight of its head. The teeth are dagger-shaped, about 18-20 cm long, with small serrations at the edges.

The jaw is strong, and when the Tyrannosaurus rex bites its prey, it pulls both sides of its jaw back to make the teeth cut deeper into the meat, and pulls back like a knife for cutting a steak to cut off the piece of meat.

2. The Tyrannosaurus rex was about a meter long, with two forward-looking eyes, a wide field of vision, and a small brain compared to a huge head, only a small cylinder about 35 cm long and about 8 cm in diameter. The olfactory lobe, optic nerve, and auditory nerve in front of the brain are all well developed, and the cerebellum and brain in the back are similar in size, indicating that Tyrannosaurus rex has a very sensitive sense of smell, and the sulcus gyrus on the brain is also relatively simple, indicating that it is not very intelligent.

3. The forelimbs of Tyrannosaurus rex are very small, with only two fingers with claws, some like small rakes, and its usefulness may not be great, but it is used to grab or pull the prey when eating the prey, or bend down to eat the food and use the front paws to support itself to stand up. Its hind legs are strong, supporting its full body weight, and its 3 clawed toes extend forward. Tyrannosaurus rex had a straight tail for balance and a quick stride, and could travel about 30-40 kilometers per hour and at least 15 kilometers per hour.

Tyrannosaurus rex is the largest of the Tyrannosauridae family. The body length is about meters. The average hip height is about 4 meters.

The highest hip height can reach about meters, and the highest head height is nearly 6 meters. The average weight is about 9 tons, the heaviest ton, and the head length is about about meters. The bite force is generally 90,000 Newtons to 120,000 Newtons, and the maximum end of the mouth can reach about 200,000 Newtons, and it is also the thickest carnivorous dinosaur.

I love Tyrannosaurus rex because it's one of the most powerful dinosaurs out there.

If the dinosaurs lived, the earth would be destroyed.

Dinosaurs were a group of animals that lived between 235 million and 65 million years ago and were able to walk upright with hind limbs on their hind limbs, and dominated the world's terrestrial ecosystems for more than 160 million years. Most of the dinosaurs have gone extinct, but the descendants of the dinosaurs, the birds, have survived and survived to this day.

The dinosaurs suddenly disappeared at the end of the Cretaceous period 65 million years ago, becoming a mystery in the history of the evolution of life on Earth, which is still unsolved. All of the earth's past creatures are recorded in fossils. In the strata of the Mesozoic era, many dinosaur fossils have been found.

A large number of bones can be seen in a variety of shapes. However, in the Cenozoic strata that followed, there were no fossils of non-avian dinosaurs at all, which suggests that non-avian dinosaurs became extinct together during the Mesozoic Era, and that only birds remain today, and most scientists agree that "birds belong to dinosaurs".

There are many types of dinosaurs, with large differences in body shape and habits, with the largest fragile dinosaur weighing more than 50 meters, while the smallest hummingbird may be less than 10 centimeters. In terms of eating habits, there are docile herbivores and ferocious meat eaters, as well as omnivorous dinosaurs that eat both meat and vegetables. Ruled the Earth for about 80 million years (100 million years ago --- 65 million years ago).

Tyrannosaurus Rex, also known as Tyrannosaurus Rex, was thirteen meters long and weighed about fourteen kilograms. Fossil divisions in North America, the United States and western Canada! Tyrannosaurus rex is arguably the most ferocious animal of carnivorous dinosaurs, and the Tyrannosaurus rex is the second most carnivorous dinosaur in the world.

But body length is fifth. The main food of the Tyrannosaurus rex was the triceratops, because some scientists found that a triceratops had tooth marks on its bones. And it was the teeth of the Tyrannosaurus rex, and now people also agree that the food of the Tyrannosaurus rex is Triceratops.

The Tyrannosaurus rex had a large head, small forelimbs, large and powerful hind feet, and a speed of 18 to 19 kilometers per hour. I think the Tyrannosaurus rex must have been very bloody when it ate!

Hi everyone, I'm a Tyrannosaurus rex, and you can tell from the name that I'm the overlord of dinosaurs! That's right, I'm 14 meters long, I'm not easy to mess with! I had stout limbs and muscles strong enough to shred a buffalo.

I have a bloody mouth, each tooth is 30 centimeters long, as long as a dagger, as thick as a banana, is it intimidating to you?

I, like the vultures now, like carrion, and with my keen sense of smell, I won't be unable to find something to eat. If you're interested in me, come to my home, the Geological Museum!

The first time I saw a dinosaur was in the cartoon "Blue Cat Dragoon", the dinosaur in it is called Tyrannosaurus Rex, when the Tyrannosaurus Rex appeared in front of my eyes, I felt that he was very shocked, its roar was very big, its body was very tall, it may be as tall as two floors, its mouth was called the "ultimate bone crusher", its teeth were very sharp, it had a huge bite force, and its tail was another powerful **, many animals ran away when they saw it. Since I was very interested in it, I went to the encyclopedia and found that the Tyrannosaurus Rex was a member of the dragon family, and the brain of the Tyrannosaurus rex was the largest and most powerful of all dinosaurs, no wonder it had such a big blood basin and a big mouth! Tyrannosaurus rexes are "fighting kings" who like to fight with other animals, as well as with their companions.

Oh! It has so much combat experience, no wonder it's so combative, and that's why I love it. I think the catastrophe that made the dinosaurs extinct must have been very big, otherwise a dinosaur as powerful as a Tyrannosaurus rex would not be so easy to defeat.

I am an ankylosaurus that lived in the early Cretaceous period. With a deadly tail and a thick layer of armor, I have a gentle personality. Likes to eat leaves from trees.

One day, I was eating leaves next to a bush and was startled by the destructive roar of a female tyrannosaurus. But I didn't run away right away, staring at the female tyrannosaurus with terrible eyes. The female tyrannosaurus was also frightened by my gaze, and she stopped roaring.

But still wanting to bring my meat back to its children, it bit me at once, and I had a thick layer of armor on my body, so there was no bleeding. At this time, my tail shines and comes on, and I am stupid! When it hit the female tyrannosaurus in the face, the bones on the female tyrannosaurus rex's face cracked.

At night, the female tyrannosaurus rex finally died after dying for a long time. At this moment, a large dark cloud fell from the sky, obscuring the moon, and it rained magma. I died because of this lava rain.

Tens of millions of years later, I became a fossil of an ankylosaurus. It is the first ankylosaurus fossil discovered by archaeologists.

Tyrannosaurus rex, also known as Tyrannosaurus rex, is a large carnivorous dinosaur, about 13 meters long, weighing about 7 metric tons, living in the last 3 million years of the Maastric order at the end of the Cretaceous period, about 68.5 million years ago to 65.5 million years ago, is one of the last dinosaur populations before the Cretaceous-Tertiary extinction event. The fossils are found in the United States and western Canada in North America, and are more widely distributed than other Tyrannosauridae. Tyrannosaurus rex was a ferocious carnivorous dinosaur.

Lived in the late Cretaceous. It is one of the largest terrestrial carnivores known, with a body length of 11-12 meters, and a head alone, with the largest skull being meters long and a body height of 4 meters. The skull is heavy, tall and laterally flattened, with two large eyeholes and oval eye sockets.

The teeth are extremely well developed. There are traces of coarse movable ligament fixation between the tooth bones, the iliac bones and the anterior articular bones, and the neck bone is short, with 9 10 cervical vertebrae, and its structure is characterized by a short and wide type. The shoulder girdle is degenerate, the shoulder blade is elongated, and the humerus is short, only half as long as the shoulder blade.

The forefoot is degenerate and weak, with only two fingers and may have a third finger remaining. The Tyrannosaurus rex belt is very well developed and extremely compact, not only the intestinal bone and the vertebrae are tightly healed, but the ischial bones and the distal ends of the pubic bone are also attached to each other; The distal pubic bone is enlarged and has a pedidal-like process, while the distal ischial bone is club-shaped. Such a thick belt structure indicates that its hind limbs are highly mobile.

Tyrannosaurus rex lived mainly in hilly areas and preyed on herbivorous reptiles. Due to changes in the surrounding environment, the Tyrannosaurus rex became extinct at the very end of the Late Cretaceous.