Young are usually born from August to October after a gestation period of about 128 days. Behavior Mongoose lemurs have a very different behavioral pattern than that of most primates. Individual activity patterns vary between populations and depending on the season. During dry seasons mongoose lemurs tend to be nocturnal and will switch to diurnal activity at the start of a cold, wet season. Male and female offspring are forced to leave their group when they are mature, at around 2.5 to 3.5 years old.
Females are generally dominant to males, giving the females predominant choice of food and mates.
Groups of E. mongoz have small home ranges and mark their territory with scent and vocalizations. Habitat Eulemur mongoz are found in two different habitat conditions. On the mainland of Madagascar, they are found in drier forests with deciduous trees. There are only about 100 mongoose lemurs in captivity worldwide and their habitats are disappearing. Land that is inhabited by Mongoose lemurs is being cleared to produce charcoal and farm land.