Marmosets are diurnal monkeys, which are active from dawn to dusk. While climbing even underneath perches and branches they use their claws. The claws are modified nails which are adapted for climbing on smooth tree trunks and branches. Scent marks are important signal which are produced with the chest and lower abdominal glands, genital glands and urine. This scent marks give information about the species, kin, sex, receptivity and even about dominance.
Individual recognition is supposed.
The marmosets have a rich repetoir of vocalisations, which is used quite specific in different context. During social interactions, the animals show a wide variation of facial expressions. Additionally the emotional state of the individuals is expressed by a variety of tuft movements, tail positions and piloerection. Female marmosets have a high reproductive potential due to biannual twining and postpartum ovulation. Subordinate females are excluded from reproduction by physical and physiological suppression.