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The Okavango Delta is among the largest swamps in Africa. The waters support a variety of species and vigorous plant growth making it an ideal subject for a biotope aquarium. This delta is sometimes referred to as the Okavango Swamp and is situated in Botswana; it is also the world’s largest inland delta.
At one time it was a lake which dried up 10,000 years ago resulting in a river that has no outlet to the sea. Instead the water disperses over the Kalahari Desert and the actual delta is prone to flooding on an annual basis. As there is no industry or agriculture along the River Okavango the water is extremely pure without any pollution from commerce. Reedy plants line the shores of the waterways and shallow pools. Floating grasses and lilies are found where there is little current. Banks along moving waterways drop off quickly, creating cliff-like formations with overhanging roots. Many fish seek refuge under these root overhangs and inside caves.(The picture below shows the Okavango Delta from space from space)
http://www.jcsm.org/SpacePics/OkavangoDelta.jpg
At one time it was a lake which dried up 10,000 years ago resulting in a river that has no outlet to the sea. Instead the water disperses over the Kalahari Desert and the actual delta is prone to flooding on an annual basis. As there is no industry or agriculture along the River Okavango the water is extremely pure without any pollution from commerce. Reedy plants line the shores of the waterways and shallow pools. Floating grasses and lilies are found where there is little current. Banks along moving waterways drop off quickly, creating cliff-like formations with overhanging roots. Many fish seek refuge under these root overhangs and inside caves.(The picture below shows the Okavango Delta from space from space)
http://www.jcsm.org/SpacePics/OkavangoDelta.jpg
Its like the one in eygypt "Nile Delta"
