Amazon river dolphin widespread river dolphins. They are present in six countries in South America: Bolivia, Brazil, Colombia, Ecuador, Peru, and Venezuela, in an area covering about . The boundaries are set by waterfalls, such as the Xingu and Tapajós rivers in Brazil, as well as very shallow water. A series of rapids and waterfalls in the Madeira River have isolated one population, recognized as the subspecies "I. g. boliviensis", in the southern part of the Amazon basin in Bolivia. They are also distributed in the basin of the Orinoco River, except the Caroni River and the upper Caura River in Venezuela. The
The South is My Country "natural differences", such as the region's climate, and that although these might create an "identity" for the region, the people and their culture are not much different from the rest of the country. Others claim there are cultural differences, such as in religion, literature, food, clothing, dances, music, etc. Some go as far as to say that Brazilians identify first with their home state, and only then as Brazilians. On the other hand, it is argued that it's impossible to identify each state's identity due to a shared "Brazilian" culture, which includes the Portuguese language, sport preferences, etc. The South