How zoos manage the complex social and ecological needs of gelada baboons, a uniquely grass-dependent primate from the Ethiopian highlands.
Gelada welfare in captivity is challenging because their social biology is exceptionally complex and their foraging requirements are difficult to replicate. Single animals or simple pairs are wholly inappropriate housing for this species. Zoos holding geladas should maintain cohesive groups that include appropriate sex ratios, allow natural social dynamics to function, and provide continuous foraging opportunities through scatter feeding and browse provision. Behavioral monitoring using ethograms validated for the species is essential for welfare assessment.