Located mostly in Brazil, but also spreading through some parts of Uruguay and Bolivia, there is a a natural region that encompasses the world's largest tropical wetland area. Interesting about this region is that it is home to 1000 bird species, 400 fish species, 300 mammalian species, 480 reptile species and over 9000 different subspecies of invertebrates. And many of them could be found just on that place on the earth.
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