It helps to strengthen and form social bonds among group members and may even be used to ease tense interactions. Common marmosets groom frequently. However, each episode usually lasts for less than one minute. In addition to grooming, other types of social contact are important for common marmosets. They may often be seen nuzzling, hugging, licking or huddling with one another.
Marmosets are no exception.
Infants must be nursed, carried and watched until they are old enough to take care of themselves. For some primates, this may be an extensive period. In the common marmoset this period lasts approximately four to eight weeks. In most primate species, the mother is the sole provider of care for the young. The common marmoset differs because the father and other group members, including older offspring, regularly carry young infants.