Grey mouse lemurs store fat in their tails and although they become less active in the winter, they do not hibernate.

Subspecies
Two.

Life span
15 years.

Statistics
Head and body length: 12cm, Tail length: 13cm, Weight: 109g.

Physical description
Grey mouse lemurs have grey to red-brown upper-parts, white under-parts and a long, bushy tail.

Distribution
Grey mouse lemurs inhabit Western & Southern Madagascar.

Habitat
They are typically found in a range of dense forest types.

Diet
Grey mouse lemurs feed on fruit, flowers, nectar, insects and spiders.

Behaviour
They live in groups of up to 15. They occupy home ranges of 0.07-2ha, and male ranges overlap several female ranges. They scent-mark their ranges by rubbing their faces on twigs and by urinating on their hands and feet. These lemurs are nocturnal and arboreal. During the day, they sleep in tree holes. Males tend to sleep alone, but several females may sleep together.

Reproduction
Females give birth to 2-4 young after a gestation period of 59-62 days.

Conservation status
This species is not listed by the 2000 IUCN Red List.