Not much is known about the biology of the black-fronted titi monkey, but inferences can be made from what is known about other closely related titi monkeys. Titi monkeys typically live in small family groups, comprising a monogamous adult pair with their offspring (6) (7). The adult female gives birth to a single offspring between August and October (8), after a gestation period of five to six months (9). Juvenile titi monkeys reach adult size within ten months (7).
The black-fronted titi monkey is active during the day and spends most, if not all, of its time in the tree canopy (7). It moves along horizontal branches using all four limbs, as well as leaping between trees (10).
The black-fronted titi monkey feeds primarily on fruit, but will also eat small amounts of leaves, flowers and seeds (11). While foraging, the family group communicates using both visual and vocal signals as the male leads the group to suitable feeding areas (7).
Titi monkeys are territorial and guard their territories through vocalisations and through chasing away any unwanted intruders (7). At night, titi monkeys rest in a specially selected sleeping tree in order to gain protection from predators (7).