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The boto and the giant otter inhabit the Orinoco River system. [29] The Orinoco crocodile is one of the rarest reptiles in the world. Its range in the wild is restricted to the middle and lower Orinoco River Basin. [30] More than 1000 fish species have been recorded in the river basin and about 15% are endemic. [31]
The Orinoco Basin is the part of South America drained by the Orinoco river and its tributaries. The Orinoco watershed covers an area of about 990000 km 2 , making it the third largest in South America, covering most of Venezuela and eastern part of Colombia .
The delta is fan-shaped, formed by the Orinoco River as it splits into numerous distributaries, called caños, which meander through the delta on their way to the sea.The main distributary is called the Rio Grande, which empties south-southeast through the southern portion of the delta, and the second major distributary is Caño Manamo, which runs northward along the western edge of the delta.
The Orinoco crocodile (Crocodylus intermedius) is a critically endangered crocodile. Its population is very small, and they can only be found in the Orinoco river basin in Venezuela and Colombia. Extensively hunted for their skins in the 19th and 20th centuries, it is one of the most endangered species of crocodiles.
Because of its natural structure, Colombia can be divided into six distinct natural regions.These consist of the Andean Region, covering the three branches of the Andes mountains found in Colombia; the Caribbean Region, covering the area adjacent to the Caribbean Sea; the Pacific Region adjacent to the Pacific Ocean; the Orinoquía Region, part of the Llanos plains mainly in the Orinoco river ...
Cichla orinocensis, sometimes known as the Orinoco peacock bass, [2] tucunaré [1] or tucunaré miri, [2] is a very large species of cichlid. This peacock bass is native to the Rio Negro and Orinoco River basins in northern South America. [3] It mainly occurs in blackwater rivers. [4]
Warao use canoes as their main form of transportation. Other modes, such as walking, are hampered by the hundreds of streams, rivulets, marshes, and high waters by the Orinoco River. Warao babies, toddlers, and small children are famed for their ability to hold tight to their mothers' necks, as well as to paddle.
Amazon River basin in the Negro and Uatumã River drainages; Orinoco River basin in tributaries of the Orinoco River in Venezuela and Colombia. Cichla thyrorus S. O. Kullander & E. J. G. Ferreira, 2006: Trombetas peacock bass: Brazil. Cichla vazzoleri S. O. Kullander & E. J. G. Ferreira, 2006: Vazzoler's peacock bass: Brazil.