are performed. These are jumps that are short and quick, only reaching a length of 1 to 2 meters. While standing on a medium or large-sized trunk, they propel themselves into the air and land on their front limbs on another trunk. They perform “bounding” leaps which allow them to cross between discontinuous trees, extending their legs farther out, reaching up to 2 meters. In the high canopy, they perform “acrobatic” leaps. These are longer leaps, reaching 5 meters or more, used to travel between treetops. While in the air, they use their tail to decelerate their body before landing on the crown of a nearby tree. Moustached tamarin monkeys select densely foliated areas for resting and sleeping to best camouflage themselves because their small size makes them an easy target. Their main tactic is to avoid predation by attracting as little attention as possible. Their predators include eagles and other birds of prey, snakes, tayras, jaguarundis, ocelots and other wild cats. Social grooming can be used to develop bonds. The moustached tamarins use their claws to detangle and comb one another’s hair and remove parasites and dirt with their teeth and tongue. Social grooming is not equally exercised by members and the amount of grooming services given and received depends on the social position of the individual. Scent marking is used to identify territory boundaries and to communicate with others. Females practice scent marking more frequently than males because it is also used in mate selection. The three types of scent marking are circumanal marking, suprapubic marking and sternal marking. Circumanal marking is the most commonly used type of scent marking. Visual communication includes facial expressions, gestures, tonguing, and head-flicking. Tonguing is when a moustached tamarin moves its tongue across its lips. Head-flicking is when a moustached tamarin rapidly moves its head in an upward motion. Tonguing and head-flicking often co-occur and are used to communicate recognition, curiosity or anger. Group dynamics Group sizes are usually 4-8 individuals, excluding infants, and each group usually contains 1 or 2 adult females. However, groups have been observed to reach up to 15 individuals and solitary individuals have been encountered. Routinely, groups of moustached tamarins leave early in the morning to forage for food. They do not feed simultaneously. One of the adults positions themselves near the feeding site and scans the surroundings for predators to protect the group during mealtimes. They