Titi monkeys at the CNPRC are housed in their natural family groups, which consist of an adult male and female and their offspring. The whole family engages in tail-twining, in which they wrap their tails together. At the CNPRC they sleep upright on branches with their tails twined, as they would in the wild. Offspring can live with their parents until well past sexual maturity, and do not reproduce while in their natal group. Titi monkey enrichment includes natural wood in their enclosures, foraging opportunities including mealworms (yum!), and coconuts which are favorite toys to groom as they have natural “hair.”
Understanding social bonds, particularly in adult titi males, also contributes to titi monkey health; for instance, CNPRC scientists have studied how their formation of social bonds can reduce stress and lower glucose levels in pair-bonded titi monkeys.