The world has experienced 5 biological mass extinctions, and the creatures that can survive today are all evolved and multiplied from ancient creatures, if the Tyrannosaurus Rex that once dominated the earth evolved into a chicken, can you believe it? One is an ancient giant beast that humans have never seen with their own eyes, the other is a chicken that can be seen everywhere in people's daily lives, two seemingly unrelated species, why do they have a relationship? Obviously, 66 million years ago, all dinosaurs, including T. rex, went extinct, which is the answer explored by human archaeologists, so how can Tyrannosaurus rex evolve alone?
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In 2000, the journal Science published a paper on T. rex, geneticist John Asara reported in the paper that he found 7 protein remnants in the femur of T. rex and human-raised domestic chickens are very similar, he boldly proposed that T. rex and chickens and modern birds from the same evolutionary branch, after his research said that the evolutionary branch of T. rex has little to do with modern reptiles, but between crocodiles and birds, and people generally believe that chickens are birds. The ancestors of birds were Archaeopteryx, however, in the 19th century, biologists discovered the fossils of Archaeopteryx, Archaeopteryx doll wings and feathers, which look like birds, but there are many parts like dinosaurs, so biologists have the idea that birds evolved from dinosaurs.
Later people learned that Archaeopteryx is a dinosaur, not a bird, and can even be said to have nothing to do with birds, through a variety of fossil comparisons, Archaeopteryx is indeed closer to dinosaurs, there is a lot of gap with birds, Archaeopteryx lived in the Jurassic period, really want to say, Archaeopteryx looks more like a pheasant, the tail is very long, there are feathers but can not fly, in fact, Archaeopteryx is a reptile dinosaur in an evolutionary state, the true descendants of Archaeopteryx, should be the dinosaurs that appeared in the late dinosaurs, which is to say, Birds were not archaeopteryx ancestors, and chickens could not have been descendants of dinosaurs, but John Asara's research has really proved that Tyrannosaurus rex and chickens are genetically similar.
The idea that chickens are genetically similar to Tyrannosaurus rexes is not out of the blue, have you ever carefully observed the running posture of chickens? Scientists have done an experiment to install an artificial long tail on the short tail of the chicken, and then observe the posture of the chicken walking, scientists have found that the chicken with the long tail walks up the road, and the walking posture of the Tyrannosaurus rex is exactly the same as the technology restored T. rex, the only difference is that the chicken does not have front paws, which further verifies the similarity of the chicken and the Tyrannosaurus rex gene.
In fact, at the beginning of the birds and chicken ancestors also have front paws, chickens and birds ancestors at the beginning only perched on the tree, only when foraging will return to land activities, when the ground activities they are very fast, the role of the front paws is similar to an accelerator, fast beating makes their speed faster, but over time, their forelimbs began to appear feathers, so the disappearance of the front paws is an evolutionary process, although the chicken and the Tyrannosaurus rex do have a lot of genetic similarities, but in fact, the chicken is not evolved from the T. rex, Biologists finally showed through research that Tyrannosaurus rex and chickens are only relatively similar in evolutionary branches, that is, Tyrannosaurus rex and chickens are only relatives, not the relationship between ancestors and descendants
We all know that Tyrannosaurus rex has long been extinct tens of millions of years ago, and the reason for the extinction of dinosaurs there are many speculations, astronomers have believed that the extinction of dinosaurs stemmed from an asteroid hitting the earth, resulting in geological disasters such as tsunamis and volcanic eruptions on the earth, coupled with the dust generated by satellite impacts on the earth to cover the sun, the earth is dark, there is no sunlight, herbivorous dinosaurs have no food to die in large quantities, carnivorous dinosaurs can not find enough food, and gradually become extinct.
But in fact, dinosaurs did not completely go extinct in that catastrophe, such as ancient dinosaurs - theropod dinosaurs, theropod dinosaurs appeared earlier than the Tyrannosaurus rex, and now more and more evidence shows that the current birds are the descendants of ancient dinosaurs, such as the chickens we raise, their distant ancestors are actually theropod dinosaurs, theropod dinosaurs have become birds at the time of the extinction, but the Tyrannosaurus rex is determined to completely perish at the time of the mass extinction, so the chickens cannot be the descendants of the Tyrannosaurus rex, can only be the descendants of theropods, And Tyrannosaurus rex actually originated from theropodosaurus, so Tyrannosaurus rex and chicken are only distant relatives, not inheritance relationship, just like we humans and gorillas all originated from primates, humans and gorillas also have similar genes, can not always say that gorillas are the ancestors of humans, so can only say that chickens are descendants of dinosaurs, bold scientists once wanted to use chicken genes to resurrect dinosaurs, is this possible?
Do you believe that chicken genes can clone dinosaurs? In the movie "Jurassic Park", the dinosaur blood in the body of a mosquito was used to resurrect the dinosaur, in 2009, the world-renowned paleontologist Jack Horner proposed this bold plan, he intends to extract the ancient DNA of the dinosaur from the chicken, resurrect a small dinosaur, this crazy plan has aroused widespread concern, Jack Horner believes that in the genome of the chicken may still retain all the genes that control the growth of dinosaur arms and fingers, as long as these genes are successfully proposed, The idea of being able to breed a "chicken dinosaur" seems feasible in theory, but it is really difficult to operate in practice.
Scientists at that time had cultivated a snout with teeth, but the tail and fingers were the most difficult, because there was no tail under the feathers of the chicken now, only a tail bone, and if you want to reverse the tail bone into a long tail, you need to know how the tail bone originally evolved. This question has not been exactly answered until recently, so this experiment finally ended without a problem, until now scientists have not cloned dinosaurs, only resurrected moa, moa is an extinct New Zealand wingless bird, however, moa is not a flying dragon, not a dinosaur, in addition to resurrecting dinosaurs, humans have also thought of resurrecting mammoths, although in the end did not succeed, but also verified that human curiosity and challenge is really very strong, I believe in the future, The mysteries of all living things can be penetrated by humans.
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