These primates are of the species Macaca sylvanus, the only genus of macaque that lives in Africa and the only primate, apart from Homo sapiens living in Europe (Gibraltar). Titin belongs to the only group of macaques living permanently at MONA. The group is formed by two females and two males and is led by Pipa. In the wild, Macaques live in groups containing males and females.
Higher ranking individuals get first access to food and other resources, which means here at MONA, with Pipa being the dominant female she gets first choice of food and enrichment.
Katy and Titin are interchangeable in the middle of the group. Depending on the situation and day, Titin can rank higher than Katy and others Katy can rank higher than Titin.
For cleaning enclosures it is necessary to split the Macaques into groups, the boys and the girls. When the girls are together Pipa still eats first. However, Titin and Abu are very comfortable with each other – eating together, play fighting together and hugging whilst lipsmacking, which is a way of bonding between Macaques.