Geladas are highly social cliff-dwelling primates from the Ethiopian Highlands with complex social structures that are difficult to replicate adequately in zoo settings.
Geladas require rich social environments to thrive, including complex multi-male, multi-female group structures that allow for natural social dynamics. Zoo groups that are too small or poorly structured lead to chronic social stress, aggression, and suppressed reproductive success. Their grazing behavior is rarely accommodated in captivity, representing a significant behavioral deprivation. Good gelada welfare requires both large, complex social groups and opportunities for extended foraging behavior.