Residents of the Orinoco River

Aborigines: Except Guajiro in Lake Maracaibo, most of the original inhabitants of Venezuela live in the Orinoco River basin, among which the most important aborigines are Guaica and Maquiritare in the southern highlands, Warrau in the delta, and Guahibo in the western part of Ranos grassland. These ethnic groups are closely related to the rivers in the basin, which provide them with food sources and transportation.

Living mode: Before the middle of the 2th century, there were only a few scattered herdsman's houses called "cattle" and a few villages and missionary areas along the lower reaches of the river. In 1937 and 1948, oil was discovered in El Tigre and Barinas in the eastern and central parts of the Ranos grassland in Venezuela, and industries and cities began to develop in the sparsely populated areas at that time. Several emerging cities at that time, such as El Tigray, have developed into cities taking shape. With the pioneer farmers moving to the foothills of the Andes and valleys along the river since the 195s, intensive agriculture has also expanded. These small farms are mainly concentrated near Guanare, Acarigua and Barinas in Venezuela and Ariari in Colombia.

The influx of the above-mentioned immigrants has made Lanos highly urbanized, with more than half of the residents living in cities with a population of 1, or more. Except for the city of Bolivar, important cities are built on high ground that is not flooded. The urban planning reflects the influence of Spain: the streets are square with a square in the center. On the contrary, the population growth of Ranos Grassland and Guiana Plateau in Colombia is slow (except in the area near ciudad guayana).