Is the Arctic wolf cloned?

On September 19, the world's first body cell cloned Arctic wolf ushered in its own "100 -day banquet". After 100 days of careful care for the conservation personnel, its body characteristics are obvious and healthy. On June 10 this year, the world's first body cell cloned Arctic wolf fell to the ground in Beijing.

The birth of the world's first cloned Arctic wolf means that in the field of life, cloning technology has once again tried successful, which is of great significance. In addition to repeating the technology that can be born of new life, its biggest significance is that if you save the extinction and endangered animals, you may further restore their population, increase biological diversity, and rebuild ecological balance.

The Arctic Wolf is already rare species, mainly distributed in the Arctic, including northern Canada and northern Greenland. The Arctic wolf is the only sub -species in its original distribution, and the chance of encountering human beings in their natural habitat is not great. Nevertheless, it is hunted by people, at least 200 Arctic wolves are hunting each year. Moreover, due to climate warming and other reasons, their habitats are also narrowing. Now there are only about 10,000 Arctic wolves in the world. Therefore, the Arctic Wolf has been included in the Red List of Endangered Species of the World Nature Protection Alliance (IUCN).

Some people think that since the cloning technology can successfully cloned the Arctic wolf, it also means that the cloning elephant can be cloned, because they are survivors of the Icehee period 300,000 years ago. However, cloning is limited. In addition to the technical route, the biggest real problem is that if the animals that can be cloned, such as mammoth, then how to survive after cloned? If the extinction of the clone does not have a similar living environment in the past, they cannot survive in the wild, and the biggest possibility can only be in circle. This means that their value is limited to becoming the object of scientific research, and there is no possibility of restoring population and rebuilding biodiversity.

Even if a clone is out of the Arctic wolf, it is necessary to continue to study and observe whether it can be put back to the wild and to restore the population. Since the first cloned sheep Doroli on July 5, 1996, more than 20 years, scientists in various countries have cloned cattle, mice, cats, dogs, rabbits, Itachi, camels and monkeys and other animals. In the study of these cloned animals, some animals can bred the next generation through natural reproduction, while others cannot.

What can be confirmed so far is that Doli had mated with a Wales goat and gave birth to 4 lambs. Later, the four sheep grew to nearly 10 years old, but because there was no more scientific value, the researchers implemented euthanasia. On April 24, 2005, the South Korean Xiuyan Life Institute clone the first dog in the world and was named Snoopy, which is an Afghan hunting dog (male dog). Snoopy breeds 10 puppies with another female dog while living at Seoul University. At present, the descendants of Snoopy are still living healthy. It has not been reported whether other cloned animals have bred offspring through natural methods. This shows that cloning may only make sense to special animals.

In addition, although cloning is a way to reproduce life, it is different from the natural reproduction of the sex. Now the cloned Arctic wolf is in the way of clonoli. The donor cells of cloned Arctic wolves are from a wild -polar wolf skin cells introduced by Harbin Polar Park. Ostopedly mother cells come from a estrus mother dog. Scientific researchers perform ovular mother cells and nuclear treatment, and then inject skin cells to the oviposorphous clearance of nuclear egg mother cells. The surrogate mother Big dog's uterus was bred and finally obtained the cloned Arctic wolf.

This method of cloning can provide good models and objects for life research, but whether cloned animals can live like wild species and produce population like wild species in nature, it remains to be tested. Therefore, from the existing conditions, cloning, such as mammoths, like mammoths that are already extinct animals.

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