Titi monkeys form lifetime relationships with a partner they choose right after leaving their family group at the age of three. Third-time mother Chica, age 9, and 6 year-old father Gunther are the parents. Gestation lasts for about 5 months after which a single baby -- or sometimes twins -- are born. Two days later, the father starts taking care of the newborn, carrying it on his back, and teaching the little one all it will need to know to become independent. The process takes about 3-4 months. Male Titi monkey are surprisingly caring and attentive and play the largest role in a baby’s upbringing; mothers interact with the baby only when it’s time for feeding. The father tends to its offspring for three to four months, when the young monkey can climb and feed on its own.

In the wild these monkey families live in the lower floors of the South American rain forest. They claim small territories of several square kilometers, where they feed mainly on fruit and leaves. Titi monkeys' survival is threatened mainly by habitat destruction.