[1] During the process of Inca expansion towards the lowlands, they came into contact with the Tacanas in the region of the Beni River, establishing relations with them.
Descent and inheritance are governed patrilineally; the residence can be with one or the other of the in-laws or in an independent house, thus forming a western-style nuclear family.
The sociopolitical organization of the Tacana still preserves, although in a refunctionalized way, the system of political authorities that the Franciscans implemented: mayor, chieftain, policeman, etc.
Some small quantity of products, which is not necessarily a surplus, in the strict sense of the term, is destined for commercialization, from which the resources for the acquisition of complementary foods or other items will come.
Traditional religious beliefs and practices still continue to exert an important influence on the daily life of the Tacana.