The extinct animals a chance "the grave"

Mammoth , or Tasmanian tiger by gastric brooding frog ... the animals have a chance " live " again.

Along with the rapid development of human society , the natural environment is shrinking with breakneck speed , which is accompanied by the extinction of countless species of different animals .

However, with the development of science , some species of which still have a chance to " live " again .

1 . By gastric brooding frog

Strange frog eggs in the stomach ( Gastric brooding Frogs - GBF ) is the scientific name Rheobatrachus , they are frogs native to Australia and is found in 1972 .

Due to the number of frog GBF was discovered not many and soon after , in 1983 , they were declared extinct . At that time , due to the development of science and technology is not high so the scientists can not be conducted to further research on this species .

GBF Frogs have a quite different: by gastric incubation. Immediately after spawning, the eggs GBF immediately swallowed into the stomach - stomach acid the whole time this has been transferred to a different bag so as not to harm the newborn egg.

When our stomachs were filled with eggs, the egg will be pulled directly into the uterus and after the eggs hatch, the frog will vomit oral.

In 2011, Professor Michael Archer and his team have succeeded in reproducing some GBF cells by DNA analysis of striped frog - species most closely related to GBF.

However, these cells have not been finalized and need a lot more research. In addition, subjects to study - the striped frogs breed only 2 times a year should be made ​​to work schedule pretty much diminished.

2. species Thylacine

Species known Thylacine, called the Tasmanian tiger or Tasmanian wolf.

The creature first appeared in Papua New Guinea but then, only remaining in South Australia.

We are a prey species with very strong teeth, a powerful chomp it three times with a dog of the same size.

The reason they are extinct directly due to human migration. Europeans who emigrated to Australia when living, farming and animal husbandry in the territory of this species, not only that, they also considered the culprit Thylacine attacking his sheep hunting should issue the command.

For each identified that the tiger, the hunter will be awarded the grand prize, so naturally, we were almost hunted to extinction. The last known Tasmanian tiger died in the zoo in 1936, formally put an end to the existence of this species.

However, a few determined Thylacine was kept at Melbourne Museum. In 2008, scientists have used the power to "patch" to their genome, inserted into a mouse embryo and begin the "rebirth" of their animal extinction.

3. Irish elk

The method uses alternative host - ie cell culture of an organism into the embryo of another creature to create the creatures there, the Irish elk regeneration - one of the largest deer species the world is not too difficult.

This giant deer shoulder height of up to 2.1 m, nearly 4m long horns, weighing up to 40kg and total body weight on average 600kg.

We lived about 13,000 years, and we have almost no chance to live again.

Fortunately, with a skeleton only fossil remains of this species, the researchers from the University of London is gradually completed a complete gene map, since rebuilding the deer cells based on basis of their relatives.

Researchers are still trying to find a suitable replacement host, questions and answers, today's data environment appropriate for the Irish elk species or not?

4. Mammoth

The mammoth regeneration is believed to be a tremendous dream to scientists because it can help open up new research directions in the last Ice Age.

In 2011, a research group in Tokyo has announced that they will give birth to a mammoth pay for 2 year technical degree to use alternative hosts. However, it seems more difficult than what we thought.

The existence of ice in a long time too so we can not guarantee intact cells and their ability to operate as "thawing" is not really good. As a result, after many experiments, they still can not make a complete cell.

Prospects for renewable ancient species as the scientific community attention as they are expected to extract stem cells from baby mammoth carcass to collect DNA to replicate ancient animals. This technique requires cells to undergo healthy despite thousands of years under the snowpack. However, the scientists hope that, with this way, the reconstructed mammoth is not too far-fetched anymore.

* Posts may use reference materials from the source: Listverse, Wikipedia ...