Mammoths have lived in the northern hemisphere for tens of thousands of years. On today's vast tundra, they left footprints. During the existence of mammoths, the benefits of their feces to the Arctic environment have been immeasurable, but we can imagine that if they can be resurrected, they will bring different vitality and vitality to a vast and empty land.

Geologically speaking, mammoths have not been extinct for a long time. The last population of Vrangel Island in Siberia disappeared around 1650 BC. On the tundra, the preservation of countless mammoth remains is amazing. Therefore, frozen soil is also considered as a natural cold storage. DNA can help scientists revive these mammoths.

2. Tasmanian tiger

The Tasmanian tiger used to be the top predator in the Australian food chain, but now it is extinct. Although Tasmanian tigers have not existed in Australia for thousands of years, they have existed in Tasmania, Australia for a long time. Due to the influence of human beings (especially Europeans, not local aborigines), Tasmanian tigers are gradually becoming extinct. 1936, the last Tasmanian tiger died in Hobart Zoo.

In recent years, although wild Tasmanian tigers have often been reported, people have not found key evidence such as hair, cry and footprints. However, many museums around the world have collected the remains of Tasmanian tigers. Scientists are also working on the research of Tasmanian tiger DNA, and the complete Tasmanian tiger genome is expected to be sequenced in the near future.

3. American chestnut tree

One hundred years ago, American chestnut trees covered 25% of the forest area in the eastern United States. From Maine to Mississippi, about 3 billion chestnut trees grow. These chestnut trees are 45 meters high and 3 meters in diameter, which can provide rich food and habitat for the local ecosystem. However, at 1904, an accident happened. An airborne fungus was found in chestnut trees of Bronx Zoo in new york. This fungus spreads very fast and will cause chestnut trees to wither and die. In just a few decades, American chestnut trees have been functionally extinct.

However, the American chestnut tree is not really extinct. At least less than 100 American chestnut trees are in good condition. They were planted in western North America by immigrants in the19th century, so they were not infected with Fusarium wilt. In addition, by introducing the immune characteristics of chestnut from China, the existing chestnut from the United States has produced antibodies against this pathogen.

4. prehistoric giant fish

About 380 million years ago, the ancestors of primitive vertebrates began to explore dry land. What forces forced these early amphibians to leave the warm ocean? The answer may be the prehistoric giant fish (Dunkleosteus).

The prehistoric giant fish may be as long as 10 meter and weigh about 3.5 tons, which is the absolute overlord of prehistoric marine ecosystem. During the 20 million-year reign of terror, this carnivore never stopped preying on other marine life.

5. European bison

Beef cattle bring us a delicious steak dinner, but we may also pay the price of our lives for it. The abuse of antibiotics and growth hormone pollutes groundwater and cattle feed, which may eventually lead to the inability of cattle and human beings to resist the invasion of new diseases. One possible solution is to bring the European bison back to this world.

The European bison, which is famous for its bad temper, is the ancestor of modern domestic cattle, and the patterns of European bison can still be found in the murals of many Paleolithic caves in Europe. The last recognized pure European bison died in Poland on 1627.

Because European bison are ancestral species, they also have close relatives. Therefore, it is most likely to resurrect the European bison to the original form closest to the prehistoric European bison. In fact, as early as 1920, Hindes and the Luz-Heck brothers in the German city zoo had already started relevant experiments and bred the famous Heck cow. Today, there are about 2000 heck cows. Biologists are continuing their efforts to improve the shape of Heck cattle and restore it to the standard of primitive European bison.

6.giant dragonfly

During the Carboniferous period about 300 million years ago, the earth was full of green vegetation, with extremely high oxygen content in the atmosphere and a very warm climate. These conditions have led to the emergence of some giant insect species. At that time, a huge dragonfly lived on the earth. Fossil specimens show that this giant dragonfly has a wingspan of 75 cm. Paleontologists estimate that the food of giant dragonflies may even include some small amphibians.

However, it may be difficult to revive giant dragonflies. Today's earth's climate is completely different from that at the beginning, and the oxygen content in the atmosphere is not enough to ensure the survival of this species. In this environment, they may suffocate to death. Dragonflies are natural enemies of mosquitoes nowadays. Considering the harm of mosquito-borne diseases, perhaps the resurrection of the giant dragonfly is conducive to killing mosquitoes and inhibiting the spread of diseases.

7.saber-toothed tiger

Saber-toothed tigers lived about 2.5 million years ago to 6.5438+0 million years ago. In its heyday, the saber-toothed tiger was probably the deadliest predator in South and North America. Among the species of saber-toothed tiger, the scariest member is called "saber-toothed tiger".

The saber-toothed tiger living in eastern Brazil has a shoulder height of about1.22m, a weight of about half a ton and a tooth length of about 30cm. They can prey on anything they want.

8. Stella manatee

Stella manatee once lived on the bottom of the western Pacific Ocean and ate seaweed. Their close relatives, such as dugongs and manatees, are also very docile, toothless and have no defense and fear of human beings. However, this docile animal is very big. Adult manatees are 9 meters long and weigh about 10 tons.

The Stella manatee was discovered and named in 174 1 and became extinct in 1768. This species has evolved for thousands of years, but we humans have only known them for 27 years. This may not be fair. So, if biologists can bring them back to life, maybe they can make up for this regret.

9.megalithic pine

With a height of 30 meters and a cross-sectional diameter of 1 m, Jushi pine was an undisputed giant in the forest during the Carboniferous period. It is estimated that the life span of this early tree is only 10 to 15 years.

Carboniferous forests have made today's earth have a large amount of coal reserves. Therefore, from the point of view of energy, it is of great significance to resurrect the giant pine. Giant pine can be replanted in marginal wetlands or swamps for non-agricultural purposes. They grow faster and have a shorter growth cycle, so they can be cut down and used once every ten years.

10. Neanderthals

In 2009, scientists successfully sequenced the complete genome of Neanderthals. The results of correlation analysis show that 1% to 4% of all non-African modern genes originated from Neanderthals. Although Neanderthals have become extinct as an independent species, they still live among modern people.

Of course, bringing Neanderthals back to life is not a realistic choice, because human beings also have many concerns. However, it is possible to reshape Neanderthals according to DNA. The last real Neanderthals lived about 30,000 years ago to 25,000 years ago, and the discovered DNA has been greatly degraded. In the near future, advanced gene sequencing technology will be able to determine whether Neanderthal DNA can be repaired.

Source: Hunting Cave (Hunting Map Network) Website:/Please indicate the source and website.