Titi Titi The titis, or titi monkeys, are the New World monkeys of the subfamily Callicebinae, which contains three extant genera, "Cheracebus", "Callicebus", and "Plecturocebus." This subfamily also contains the extinct genera "Xenothrix, Antillothrix", "Paralouatta, Carlocebus, Lagonimico", and possibly also "Tremacebus". Titis live in South America, from Colombia to Brazil, Bolivia, Peru and northern Paraguay. Depending on species, titis have a head and body length of , and a tail, which is longer than the head and body, of . The different titi species vary substantially in coloring, but resemble each other in most other physical ways. They have long, soft
White-eared titi In captivity, the white-eared titi has been known to live for over 25 years. The white-eared titi is cryptic, diurnal and known to live in small family groups. It is a monogamous species that is thought to mate for life and lives in groups that usually consist of two to seven members; an adult pair and up to five young. Multi-male groups have also been recorded. Offspring are carried by the male, and are always with them, except when feeding. Between the ages of two to four years, offspring will disperse from the natal group, with females leaving earlier than