Coimbra Filho's titi population of only 500 to 1000 individuals remaining. Current studies have shown that due to the species relatively large number of populations, as well as its tolerance to habitat loss and fragmentation, the species has a positive outlook. However action must be taken to prevent further habitat loss and fragmentation from threatening the species, as well as the implementation of plans to aid in the species' sustainability. Coimbra Filho's titi Coimbra Filho's titi ("Callicebus coimbrai") or just Coimbra's titi is a species of titi, a type of New World monkey, endemic to forests in the Brazilian states of Bahia and
Red-bellied titi whenever two from the same social group are by each other. The red-bellied titi has a variety of postures and facial expressions that it uses as visual signals. Swaying the entire body, turning the head sideways and lowering the head to face downward are examples of these signals. Observers have seen that these signals are a response to a disturbance or escape tendencies. Arching of the back is a signal that the red-bellied titi uses to warn that they're about to attack. This signal is associated with hostility, after they arch their backs an attack usually follows. Other signals associated