184. Australia - nature
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Located in the southern hemisphere, between the Pacific and Indian oceans,
Australia is one of the largest countries in the world.
Despite its vast size, Australia does not have a large population.
In the year 2000, there were about 19 million people in Australia.
Most Australians live within a short distance of the ocean,
because much of the interior of Australia is extremely dry.
The remote areas of Australia, known as the "outback",
contain several sandy, rocky deserts.
Some parts of the outback receive somewhat more rainfall,
and can support some grassy vegetation.
In these areas, there are many ranches, or farms, where sheep and cattle are raised.
Although the outback of Australia is a harsh place,
some parts of it are quite beautiful.
In the middle of the Australian continent, a large red rock known as Uluru stands in the desert.
It is nearly 350 meters tall and is nearly 10 kilometers around.
Tourists come from all over the world to see this huge and beautiful rock in the middle of a flat desert.
In contrast to the dry interior areas,
the northern coast of Australia receives a great deal of rainfall.
This area is covered in thick, lush vegetation,
with tropical rain forests whose exotic trees and flowers are found nowhere else in the world.
Off the north-east coast of the continent, a large coral reef known as the Great Barrier Reef is found.
A coral reef is a structure that consists of the bodies of small underwater animals called coral,
whose dead bodies create this unusual structure beneath the surface of the water.
The reef and the underwater life surrounding it are especially beautiful.
Australia was separated from the rest of the world for millions of years.
As a result, many of the plant and animal species in Australia are very different from those in other parts of the world.
For example, many of the animals in Australia belong to a special category called the "marsupials".
Marsupials are mammals, but they are a special kind of mammal,
because they give birth to offspring that are not yet well developed.
In many marsupials, the offspring continue to develop, after being born,
inside a pocket or "pouch" on the mother's body.
The most famous marsupial is the kangaroo.
Kangaroos can travel at great speeds by hopping on their hind legs
and using their large tails for balance.
The kangaroo is a rather large animal,
with the larger individuals sometimes weighing 90 kilograms.
Another famous marsupial is the koala.
This animal is sometimes called a koala bear
because it looks somewhat like a small bear.
The koala lives in the branches of trees called eucalyptus trees.
Koalas eat the leaves of eucalyptus trees.
Of course, Australia also has people.
We will discuss the people of Australia in the next passage.