Is it really a good thing to "revive" extinct animals?

in recent hundreds of years, hundreds of animals have disappeared from the earth forever. Their extinction is considered irreversible, and the imagination of bringing them back from the dead only exists in science fiction films like Jurassic Park. But in fact, as early as 23, Spanish and French scientists successfully "turned back time" and cloned an extinct animal-the Pyrenees wild goat. The scientist named the ewe "Celia". Although the survival time is extremely short, this cloned wild sheep still marks the first successful step on the road of "resurrection" of extinct animals. In the southern hemisphere, a joint research team composed of Australian and American researchers tried to revive the gene of the marsupial wolf and succeeded. In the northern hemisphere, researchers in South Korea and Russia are trying to revive mammoths. Last summer, they found the well-preserved mammoth remains from the frozen soil of Siberia. However, in view of the fact that the maturation period and pregnancy period of an elephant's egg cell are quite long, during which there will be more risks and accidents than those in Selia, Birkelund, it will take some time to successfully resurrect the mammoth. The goal of resurrecting extinct animals is within reach. At the same time, there is a big discussion within the scientific community about whether humans should resurrect extinct animals. In addition, supporters believe that resurrected animals are expected to restore the destroyed ecological environment in some areas. For example, mammoths live in the vast grasslands of Siberia, and their excrement is an excellent fertilizer to nourish the grasslands. After the extinction of mammoths, grasslands lacking fertilizer were gradually replaced by tundra. Scientists speculate that if mammoths can be resurrected and returned to Siberia, it will help to reduce the area of tundra and gradually restore the grassland ecosystem. However, these beautiful visions did not impress scientists who opposed the "resurrection theory." They believe that at present, many animals on the earth are on the verge of extinction. If we invest a lot of time, energy and cost to revive the extinct creatures, it will inevitably contain and weaken the protection of the existing endangered animals, and the result will not be worth the candle. In addition, some scientists point out that just cloning an individual of an extinct animal does not mean that human beings have the ability to revive the whole population. Assuming that Celia's clone survived, but as a female, it has been unable to find a male Pyrenees wild sheep to mate and reproduce in this world, then the final fate of this species is extinction. "