500 million years ago, life on earth experienced a big explosion after more than 3 billion years of evolution. This life explosion not only caused an explosive increase in the types and numbers of marine life, but also began to appear in large numbers of terrestrial life. This is a glorious age of life.
Of course, with the advent of the Big Bang era, nature has also ushered in many great changes. The five mass extinction events have ended countless lives and several life eras, and at the same time, some creatures have ushered in brilliance. . The third mass extinction was the most serious of the five mass extinction events, with approximately 96% of the mass extinct.
However, this serious biological extinction has achieved a kind of creature, that is, dinosaurs. After the third biological extinction, dinosaurs rose rapidly, and soon occupied the earth’s biosphere, became kings, and opened up 160 million years of history. The road to dominance.
The age of dinosaurs spanned 160 million years, beginning 250 million years ago and finally 66 million years ago. During this long dinosaur age, various dinosaurs also began to appear constantly, occupying more than 80% of the earth’s biosphere. There are many types of dinosaurs, and they are divided into many families, including those that swim in water, those that run on land, and those that fly in the sky.
Although there are many members in the dinosaur family, there are also strong and weak in each race, and there are also kings. So who is the king of the dinosaur family? I believe many friends know that it is the overlord dragon. When we listen to this name, we can see its domineering and mighty.
Tyrannosaurus rex is the largest carnivorous animal in the Tyrannosaurus family of the dinosaurs, with an average body length of 11.5 to 14.7 meters, a head height of nearly 6 meters, and a weight of about 9 tons. Tyrannosaurus rex has an unusually huge mouth. According to the research of scientists, the bite force of Tyrannosaurus rex is very terrifying, generally reaching 90 to 120,000 Newtons, and the maximum biting force even reaches the dreaded 200,000 Newtons.
Tyrannosaurus rex occupies the top of the dinosaur family regardless of its size, weight, or terrible bite force. No wonder it can become the king. But there is no absolute perfection in anything, and the same is true for any kind of creature. There is no absolutely perfect creature.
Tyrannosaurus relied on powerful physical power to dominate the dinosaur world, but its body also had a very embarrassing place, that is, its pair of forelimbs. Basically, terrestrial animals have limbs, and dinosaurs are no exception, but for other dinosaurs, their limbs are not particularly different. But the Deinosaurus was different. Its hind limbs were thick and powerful, but its forelimbs were short and small, which did not match the body at all.
According to research conducted by archaeologists, the length of the forelimbs of Tyrannosaurus rex is only 0.8 meters, which is almost the same as the length of a human arm. If this length matches the body of Tyrannosaurus, it looks very mini. You must know that Tyrannosaurus rex is very large, more than 10 meters in length, and 6 meters in height. Such a huge body is equipped with a pair of forelimbs of only 0.8 meters. Isn’t it very embarrassing?
The forelimbs of Tyrannosaurus rex are a little too short. Such forelimbs can neither reach the mouth nor the feet. It looks like a pair of useless structures. Of course, such mini-forelimbs look “cute” to humans, making the originally ferocious prehistoric behemoths so cute. It has increased the goodwill of human beings a lot.
It is estimated that in the heart of Tyrannosaurus, his mighty image was destroyed by this pair of tiny “little hands”. In the dinosaur family, it is estimated that the pair of mini forelimbs of Tyrannosaurus were also the focus of ridicule by other dinosaurs, which made Tyrannosaurus very embarrassing.
No matter what, nature has allowed the forelimbs of Tyrannosaurus to evolve into this way, and there must be a deep meaning behind it. We must know that nature is very fair to every living thing, and will choose an evolutionary direction that is most suitable for living things. The fact that mankind can embark on the path of intelligent evolution is also a decision made by nature after comprehensively considering the living conditions of mankind.
Why did Tyrannosaurus rex have evolved such short forelimbs? What role does it have? The reason why Tyrannosaurus rex evolved short forelimbs is closely related to its ancestor, Tyrannosaurus rex. Scientists have shown that Tyrannosaurus rex originated from Tyrannosaurus rex 125 million years ago. This dinosaur has a body length of 4.5 to 6 meters and a weight of about 2 tons.
The biggest characteristic of Tyrannosaurus protoss is to use its big mouth to hunt prey, and for this advantage to continue, in the subsequent evolution process, the head of Tyrannosaurus protoss evolved more and more. Biological evolution must achieve a balance, otherwise it will cause major problems. Tyrannosaurus Hajime’s head is getting bigger and bigger. In order to maintain the balance of the body and not to slow down its own speed, its figure and legs should also be corresponding. The ground became bigger and bigger, and the tail became longer and longer.
In this evolutionary process, its forelimbs did not keep up with the pace of evolution, but kept the state of its ancestor Tyrannosaurus tyrannosaurus. Not only that, as its legs became thicker and stronger, the role of the forelimbs became less and less. Degraded to a certain extent. The forelimbs of other dinosaurs are for predation and will evolve with their bodies to become stronger.
The Tyrannosaurus started from its ancestor Tyrannosaurus, and it never relied on forelimbs for predation, so it gradually began to degenerate and become shorter. Of course, this is not completely useless for short forelimbs. One of its important functions is to maintain the balance of the body.
Of course, it is a bit wasteful just to keep the body balanced. It also has some other auxiliary functions. For example, after an accidental fall, the forelimbs can be used as auxiliary support to make it easier to get up. At the same time, it can also assist in eating. Although Tyrannosaurus rex mainly relies on its powerful mouth for food, it is very inconvenient if it only uses its mouth when eating.
At this time, the forelimbs of Tyrannosaurus rex showed its effect, it can control the food it catches, so as to facilitate better eating. Some scientists also believe that Tyrannosaurus rex may have another important role in its short forelimbs, which is to communicate with other Tyrannosaurus rex.
Tyrannosaurus rex has an unusually huge head, so in addition to its powerful power, its intelligence is also a major advantage. It can be said that in the dinosaur family, Tyrannosaurus rex is definitely a wise man. This is very smart and often teamwork with other Tyrannosaurus rex. However, if the Tyrannosaurus rex wants to complete a better teamwork, it is naturally inseparable from communication. The communication method of the Tyrannosaurus rex may be completed through this short forelimb, similar to human sign language.
Of course, these are just our guesses. What role does Tyrannosaurus rex’s short forelimbs play? There is no definite answer yet. The only certainty is that it can indeed enhance the balance of Tyrannosaurus rex. In spite of this, the short forelimbs still make the Tyrannosaurus rex’s strength drop a lot. If it has a pair that can perfectly match the body, then the strength of the Tyrannosaurus will be even higher.