 Another form of delayed maturation involves parental presence that inhibits reproductive activity, such as in mature marmosets offspring that are reproductively suppressed in the presence of opposite sex parents and siblings in their social groups.Reproductive suppression occurs when sexually mature individuals in a group are prevented from reproducing due to behavioral or chemical stimuli from other group members that suppress breeding behavior.Social cues from the surrounding environment often dictate when reproductive activity is suppressed and involves interactions between same-sex adults.