21 facts about Australia

11.The world’s longest fence is located in Australia.
The Diego Fence is 5,614 kilometers long and 180 centimeters high. It was built between 1880 and 1885 to protect grazing sheep from dingo dogs. It has reduced the loss of sheep, but since the 1990s, some dingo dogs can get through the holes found in the fence.
12.10 out of 15 most venomous snakes live in Australia.
It is also home to many highly venomous spiders.
13.83% of mammals, 89% of reptiles, 90% of fish, and 93% of amphibians living in Australia are endemic.
The reason is the continent’s very long geological isolation.
14.There are two species of monotremes in Australia that act as an interface between reptiles and mammals.
Monotremes are oviparous, and their digestive system, reproductive and excretory systems have a shared outlet.
15.The most characteristic representatives of Australian fauna are koalas and kangaroos.
16.There are more than 150 million sheep in Australia.
It means that there are six animals per capita.
17.Aboriginal civilization is the oldest on Earth. It is estimated that aborigines have lived in Australia for about 40 – 60 thousand years.
18.About 25% of Australians were born in another country.
19.There are no active volcanoes in Australia.
This makes it the only such continent on the planet.
20.The island of Tasmania has one of the cleanest air in the world.
21 facts about Australia

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