Some Factors That Influence Social Structure
Primates are vulnerable to many predators, including snakes, birds of prey, leopards, wild dogs, lions, and even other primates.
Where predation pressure is high, large communities are advantageous.
These may be multi-male, multi-female groups or congregations of one-male groups.
When a baboon strays too far from its troop, it is more likely to fall prey to predators.
Leopards are the most serious nonhuman threat to terrestrial primates.