Mostly eating unripe fruit and seeds, Uta Hick’s bearded saki has large canine teeth and strong jaws to crack into hard shells, and has flat molar teeth to grind up fruit before swallowing (8). Each day, Uta Hick’s bearded saki travels around 3.3 kilometres in search of food (9), walking or running on all fours (10). When it finds a suitable feeding tree Uta Hick’s bearded saki has been observed to hang upside down by its hind feet to feed on fruits in hard to reach places (6).
Uta Hick’s bearded saki lives in group sizes of approximately 22 individuals (9), but these groups change depending on availability of food (11). Often, the Uta Hick’s bearded saki will travel in a large group that splits into smaller feeding parties, preventing competition between members of the group (11). Although there may be a low level of fighting between males in the group (3), Uta Hick’s bearded saki is a social monkey, participating in play, grooming and social sleeping with other members of the group (12).
Uta Hick’s bearded saki reproduces mainly in the dry season, between December and April (12). Gestation lasts around 150 days (6), and infants are cared for by the female (12). The young Uta Hick’s bearded saki clings to the females’ chest for the first two months and then is carried on its back until it is five months old. After around one year the juvenile Uta Hick’s bearded saki will no longer be carried by the female, although it will not be weaned for a further few months (12).
The maximum lifespan of Uta Hick’s bearded saki is approximately 18 years (6).