Microcebus murinus, commonly known as the gray mouse lemur, is a small primate endemic to Madagascar. It has large eyes adapted for nocturnal vision, a bushy tail for balance, and a gray-brown fur coat. These lemurs are arboreal and lead a solitary lifestyle, feeding primarily on fruits, insects, and small vertebrates.

Microcebus murinus, commonly known as the gray mouse lemur, is native to Madagascar. This species is found predominantly in the western, southern, and eastern parts of the island.

The gray mouse lemur inhabits a range of forest types including dry deciduous forests, spiny forests, and humid evergreen forests. These areas typically experience a tropical climate with distinct wet and dry seasons. The dry deciduous forests are characterized by seasonal leaf shedding, while the spiny forests consist of drought-resistant plants adapted to arid conditions. Humid evergreen forests are lush and dense with consistent rainfall throughout the year.

Microcebus murinus is a nocturnal and arboreal species, meaning it is active at night and primarily lives in trees. It plays a crucial role in the ecosystem as a pollinator and seed disperser. The species feeds on a varied diet consisting of fruits, insects, flowers, and nectar. Its ability to adapt to different forest environments across Madagascar highlights its ecological versatility.