The Biembiens only language is grunt-like sounds. They are mean, nasty and very unfriendly beings. They do not wear clothes to cover their naked short, deformed and ugly bodies. These creepy creatures are very agile climbers of both trees and mountains. They travel and attack alone or in groups. They remain in hiding during the daylight hours and crawl out when the light dwindles. They emerge from their hiding places to search for food. Like the Ciguapa they also leave backward tracks to protect themselves from being discovered. They do eat humans, mainly the entrails and also use humans as sacrifices.
According to the beliefs of those who admit their existence, it is a demanding being that requires those who have enormous sacrifices even in family members, for that reason, the illness or death of a family member who is attributed possession of Such an entity is always considered as a work of this and not by the disposition of who regulates it in the world.