Here's why:
* Territorial Behavior: Many monkey species are territorial, and their territory includes areas for foraging, sleeping, and defecating. They may use a specific area for defecation within their territory, but this is not a communal space shared by all members of the troop.
* Hygiene: Monkeys are very clean animals and often groom themselves and each other. They are likely to avoid defecating near areas where they eat or sleep.
* Social Structure: Some species of monkeys live in complex social groups, but they still have individual space and boundaries. They might use specific areas for defecation depending on their dominance hierarchy or individual preferences.
* Hygiene and Disease: Shared defecation areas could increase the spread of disease, which is something monkeys would naturally try to avoid.
Therefore, while monkeys might have preferred areas for defecation within their territory, they don't engage in the organized, communal toileting practices that humans do.