Table 3.

List of behaviours, definitions and the period in which behaviours were collected.

Behaviour	Definition	Period
Immatures with group members other than their mother
Grooming	Manipulation of another group member’s fur by the immature or manipulation of the immature’s fur by another group member.	August 2021 to June 2022
Playing	Exaggerated spontaneous behaviour by the immature and at least another individual, including object play, acrobatic play, sparring and wrestling.
Cofeeding	Feeding involving the immature and another group member within a 1 m proximity in the same tree.
Immatures with their mothers
Carrying	Maternal displacement, while the immature clings to the mother’s back.	February to June 2022
Nursing	The immature holding the mother’s nipple in their mouth.
Playing	Exaggerated spontaneous behaviour, including object play, acrobatic play, sparring and wrestling.
Touching	The mother placing the palm of one or both hands on the offspring’s body.
Grooming	Manipulation of the immature’s fur by the mother.
Proximity	The immature and the mother being within a 1 m proximity of each other.