* Different species have different reproductive rates: Some monkey species have only one baby at a time, while others can have twins or even triplets.
* Factors like age, health, and environment influence litter size: A healthy, mature monkey is more likely to have multiple offspring than a younger or unhealthy one. Environmental factors like food availability and predators also play a role.
However, here's some general information:
* Most monkeys are monogamous, meaning they have one mate and usually produce one baby at a time.
* Some monkeys, like marmosets and tamarins, are polygamous, meaning they have multiple mates and can have twins or triplets.
* Gestation periods vary widely, from 4 months in smaller species to 7 months in larger species.
* Young monkeys typically stay with their mothers for a year or more, learning essential survival skills.
To get a more precise answer, you'll need to specify the type of monkey you're interested in.