Araguaya River -

Midway through its course, the Araguaia splits into two channels to encircle Bananal Island ( Ilha do Bananal ). Covering over 200 miles in length, it is recognized as the largest fluvial island on Earth.

The river acts as a vital transition zone between the Amazon rainforest and the Cerrado savanna . It is home to more than 700 bird species and 300 fish species, including the giant otter, the pirarucú (one of the world's largest freshwater fish), and the endemic Araguaia River dolphin . Historical and Cultural Context araguaya river

The (sometimes spelled Araguaya) is a massive waterway in central Brazil, stretching approximately 1,632 miles (2,627 kilometers) from its headwaters in the Goiás highlands to its confluence with the Tocantins River. Its name, derived from the native Tupi language, poetically translates to the "River of the Macaws" . Geography and Natural Wonders Midway through its course, the Araguaia splits into

While its numerous falls and rapids make it difficult for large-scale navigation, the river is a major source of hydroelectric power . It is home to more than 700 bird