- The animal is nocturnal or crepuscular in the humid forests of eastern Madagascar.
- Status is Vulnerable because of habitat loss.
The Malagasy mongoose lives in tropical moist forests, terrestrial habitats, and forested landscapes, at elevations up to 1.6 kilometers. The species inhabits areas with a climate that is always hot and wet, experiencing very high temperatures and humidity throughout the year with rain almost every day; it also occupies regions where winters have little precipitation and summers bring more rain, or where it is very hot all year. The climate can also be very hot with frequent rains, although sometimes dry; or it can be very wet with rain occurring almost constantly and a high degree of humidity.