Titis are arboreal and diurnal forest dwellers. They are usually found in trees at a height of 10 to 30 feet, but do descend to the ground occasionally. Each group of Titis occupy a small, well-defined, stable home range. There are regular territorial confrontations between groups where their ranges overlap. These engagements involve displays, vocalizations, and vigorous chasing, but physical fighting is rare, and never severe. Groups consist of two to seven individuals, including a strongly bonded pair of adults and their offspring. The adult male searches for food, leads group movements, and usually carries the infant when it is not being nursed by the female. There is a wide range of visual signals and vocalizations for communication. The intertwining of tails occurs frequently when two or more animals of the same group sit side by side.