The earth has a history of 4.6 billion years since its birth, and in this long process of development, the earth has also undergone many changes, among which many organisms have eventually gone extinct due to their inability to adapt to the earth's environmental changes, such as mammoths, their extinction is related to the earth's environmental changes, and there are many such cases.
In fact, when organisms become extinct or disappear, there will also be some more miraculous events, that is, species that are identified as extinct or disappeared will "surprise" appear again, but why scientists have not yet found the reason.
< h1 class= "pgc-h-arrow-right" > coelacanth is thought to have gone extinct 65 million years ago. </h1>
Scientists are studying life on Earth and have discovered a creature whose spine is hollow, first appeared in the Devonian Period 350 million years ago, when it was extremely abundant on Earth, which was called "living fossils of the age of the dinosaurs".
Because no trace of them has been found in subsequent studies, scientists speculate that this creature, the coelacanth, was extinct 65 million years ago, after all, the dominant dinosaurs at that time were already extinct, let alone ordinary freshwater fish.
However, in 1938, the unexpected discovery of this fish on the coast of southern Africa reappeared in people's field of vision, which made people have a great improvement on this freshwater fish, and this discovery also made biologists boil.
< h1 class= "pgc-h-arrow-right" > coelacanth</h1>
Coelacanths, the order Phylloscopus, a collective term for some leaf-finned teleost fish, and the extinct suborder of spiny fish whose close relatives are considered to be the ancestors of terrestrial vertebrates.
The modern coelacanth is a deep-sea fish of the latimeriidae family (Speartail), named after the hollow fin spines, the body size is larger than those fossil species, is a ferocious predator, the body is thick and mucusy, the fins are limb-like, flexible, the color is more vivid, very easy to distinguish, the current coelacanth has also become a "near-threatened" species.
<h1 class="pgc-h-arrow-right" > the diphtheria buzzard is a species that went extinct 136,000 years ago. </h1>
The white-throated buzzard is a land bird that lives on the Aldabra atoll in the Seychelles and does not fly. The white-throated buzzards became extinct because the sea level of the Aldabra Atoll, where they were located at the time, was rising, causing the entire island to be submerged.
According to the situation, this flightless white-throated buzzard should become extinct or disappear during the sea level rise, and in the 100,000 years after the extinction of the white-throated buzzard, humans have not found any traces of the white-throated buzzard, so the white-throated buzzard has been confirmed to be extinct.
However, with the movement of the earth's crust, Aldabra Atoll slowly surfaced, and not long ago, scientists actually found a species that was considered "extinct" - "white-throated buzzard".
With today's ecosystem changes, some argue that if sea levels rise again, Aldabra Atoll will be flooded and the white-throated buzzard will face extinction again. But here we don't need to discuss the question of sea level, but to discuss whether this species has gone extinct.
In terms of time, 136,000 years ago, the white-throated buzzard was considered extinct, but a British research team found that the white-throated buzzard had indeed been "resurrected" by analyzing the fossils of the island.
<h1 class= "pgc-h-arrow-right" >why is the white-throated buzzard "resurrected"? </h1>
In fact, the reason for the resurrection of the white-throated buzzard has not yet been able to get a definite conclusion, but some experts have said that this may be the "iterative evolution" of the species to make the white-throated buzzard resurrected.
This theory holds that under the influence of environmental pressures, sometimes evolution becomes a predictable process, and after a species goes extinct, some new species with very similar characteristics may appear in the same place later, simply put, the same species in the same place, it is likely to appear repeatedly in different years, which is not surprising.
<h1 class="pgc-h-arrow-right" > summary</h1>
In recent years, there are many species that have been declared extinct have been discovered by humans again, although these extinct species have reappeared, but this possibility is also very low, and the situation is not as optimistic as we think, so we should cherish these "re-emerging" creatures, because they also have their own indispensable place on the earth.
Judging from the "resurrection" of these creatures, although human beings can be regarded as the highest living creatures on the earth now, we still have many problems that cannot be solved in the face of the unknown earth, so for the earth, human beings should not only maintain a sense of awe at all times, but also protect the creatures on the earth, but also love the ecological environment of the earth.