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Showing posts with label Amazing Animals. Show all posts
Showing posts with label Amazing Animals. Show all posts

Thursday, March 27, 2008

Thorny Devil Lizard

Amazing Lizard form Australian desert.

Slowly move their right back foot then put into the disc contains of water. This is a Thorny Lizard, act seem not as dangerous as seen, even their body fully of keen thorn, the length of this lizard estimate until man shoulder high just 2 cm less. This lizard look so sweet to the cruel environment, that dwelt by most noxious snake in the world include inland taipan (Oxyuranus microlepidotus) which can kill one hundred people by 30 gram poison and also desert death adder (Acanthophis pyrrhus), what its name have depicted its buttonhole.



The environment of that desert is very cruel, where the wind fizzing among the mulga trees (Acacia aneura) that feel like puff of hair dryer with maximum setting. In here in the desert field, in the dried part of the dried world that live by human, we must know exactly of water position to get next drink water. After 30 second their foot put into the disc their back the wet, water from the disc have diffused through their foot up to the body, and a few second water have come up into their mouth, the lizard taste by the tongue. Basically this lizard drink by their foots. This lizard can accumulate water from the damp sand, an excellent ability of desert dweller.



The skin more hydrophobic that you ever think, this may any hide capillary pipe in their foots that can flowing water to the mouth. Thorny Devil lizard from the dry Australian desert show the magic ability by sipping water up to the mouth through by aqueduct among the scales. The scientist hope able to imitate the lizard mechanism to develop technology to accumulate water from dry area.

Friday, December 28, 2007

Endanger Species

Endanger Species are those whose population have been so reduced that they are threatened with extinction. Thousand of species are included in category. The International Union for the conservation of Nature and Nature Resources (head quartered in Morges, Switzerland) publishes a list of threatened mammals, birds, reptiles and amphibians. This list is growing at an alarming rate, as is the number of endangered species of fish, invertebrates, and plants. Example animals that include in the endangered are Javanese Rhinoceros, Whale, Trumpeter Swan of North America, Komodo Dragon of Komodo Island-Indonesia, California Condor, Gorilla of African.

 

Causes of Extinction

During the millions of years that preceded the appearance of human life, extinction of organisms was linked to large scale geologic and climatic changes, the effects of which were translated into major alteration of the environment. Environmental change is still the primary cause of the extinction of animals, but now the changes are greatly accelerated by human activity. Clearing land for farms and towns, lumbering, mining, building dams, and draining wetlands all alter the environment so extensively that ecosystem may be completely destroyed. With a burgeoning human population requiring food, shelter, and clothing and constantly demanding more energy-using devices, the temptation to exploit land for human use without regard for consequences is great.

 

Frequently, several forms of environmental change are responsible for the disappearance of species. For example, as tropical forest are cut down, primates have progressively smaller feeding and living spaces. They also become more accessible to hunters, who kill monkeys for food and trap zoo specimens. Some animal species may move into human communities when their own are destroyed. Extermination of marauding monkeys, roaming tigers, or foraging deer is easy to justify by people whose livelihood is threatened.

 

Many species of birds lay thin-shelled or shell-less eggs as a result of ingesting degradation products of DDT and other chemicals that enter the food chain. Species of salamanders in New England are dying out because their habitats are watered by Acid Rain. Industrial wastes dumped in the Mediterranean have so depleted the oxygen supply that some species and the nutrient cycles disturbed.

 

Many species have been exterminated or endangered because people have killed the animals for food, fur, hides, or feathers. As a result of whaling, some whale species are close to extinction. Claim and fish are endangered by varying combination of naturally changing environments, population, and over harvesting.

 

Predictive Measures

Many endangered species received a measure of relief in 1973, when the 80 nations that originally participated in the Convention on International Trade in Endangered Species of Wild Flora agreed to half imports of endangered species. The International Whaling Commission forbids the hunting of blue, bowhead, humpback, gray, and right whales; it set a moratorium on all commercial whaling, effective in 1986, but Japan, Iceland, and Norway continued to hunt and kill certain species.