Showing posts with label specimens. Show all posts
Showing posts with label specimens. Show all posts

Australian Customs Makes Big Mistake

Plants destroyed in australia
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Australian customs

Is Cloning of Extinct Animals Possible?

It seems researchers are close to cloning the woolly mammoth and perhaps a species of frog that gives birth to offspring with its mouth - swallowing fertile eggs then incubating them in its mouth. The frog died out in 1983. We have heard claims like this before. Personally, I believe we are a long way from being able to do this.

Repairing the damage that pushed them to extinction is not sufficient to bring them back. Finding specimens with suitable preserved material is near impossible. Even the few frozen southern gastric-brooding frogs were not initially preserved with the intention of "cloning". Special techniques were not applied.

It is thought improved systems like somatic cell nuclear transfer will enable creation of a living frog. Some presume this can be used on viable mammoth cells. The issue will be producing a healthy living creature. Previous research has resulted in incomplete clones: many do not live long. Most scientists are pessimistic about the possibility of "perfect" cloning.
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Northern Territory Mammals Endangered

The Northern Territory has a low population density, so it could expected that natural fauna would remain dominant over human destruction of the environment. Apparently, this is not the case. A study observed Aboriginal elders and their interaction with wildlife. Comparing findings with previous records showed a decline in the mammal population.

Only small numbers of quoll, black-footed rat and golden bandicoot survive. Nearly 50 new animals have been included in the endangered list this year. Two mammals and a bird have now been declared extinct. Small and medium size animals are affected most. Large animals are unaffected. It seems large animals such as kangaroos benefit from the presence of humans.

Planned action is proving beneficial. Improved fire control has raised the number of gouldian finches. Reptiles are doing well. Specimens of the bronzeback lizard have been found. They were thought to be extinct in the Northern Territory.

Damage has been done by the influx of animals foreign to Australia such as cats, foxes and cane toads. Farming is thought to have less impact. A major problem is that fewer fires occur in some areas. Aboriginals did practise traditional patch burning. This was good for native flora and fauna. Aboriginals should be encouraged to go back to the old ways before the skills are lost.
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