But some young guenons do curl their tails around branches, and babies twine their tails around mum's as they cling to her belly. Their tails are never held over the back as mangabeys do. M ost guenons rarely come to the ground. But those with the greatest range and also the largest number of subspecies are partly adapted to ground living, e.g., the savannah superspecies. But these also flee into trees when threatened, and sleep in trees, holding onto branches or each other.
Guenons are good swimmers.
The word guenon means fright in French word, reflecting the guenon s habit of grimacing and exposing its teeth when excited or angry. The ground dwelling guenons tend to have more males than females, with one dominant male, but all mating with the females. In some, the male is peripheral to the female core, moving among all-female groups. Males are generally a little bigger and a lot heavier than females. Guenons are territorial but not fiercely so and avoid serious fighting.