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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.
To the east the Orinoco wetlands and Orinoco Delta swamp forests occupy the Orinoco Delta. [2] The Llanos' main river is the Orinoco, which runs from west to east through the ecoregion and forms part of the border between Colombia and Venezuela. The Orinoco is the major river system of Venezuela. [3]
The Orinoquía region is one of the six natural regions of Colombia that belongs to the Orinoco River watershed. It is also known colloquially as the Eastern Plains from the Spanish Llanos Orientales. The region covers most of the area of the departments of Arauca, Casanare, Meta, and Vichada. [1]
Check out our fun construction facts about the new temporary bridge spanning the Herring River in Wellfleet!
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]