Mouse Lemur Fact Sheet

Common Name:

Mouse Lemur

Scientific Name:


Wild Status:

Vulnerable/Endangered, some are Least Concern


Dry Forests





Life Span:

Up to 15 years in captivity for most species


Less than 11 inches long, the smallest being a little under 4 inches

Cool Facts:

  • Mouse Lemurs are the smallest primates on the planet, and Madame Berthe's Mouse Lemur is the smallest of them all.
  • Because of their small size, the Mouse Lemur has the smallest brain of any known primate, weighing roughly 2 grams.
  • Mouse Lemurs are omnivores, and have a varied diet including arthropods, fruit, flowers, nectar, and small vertebrates.
  • Owls, Snakes, and bigger Mammals make up the majority of predators for the Mouse Lemur


Like all Lemurs, Mouse Lemurs are primates endemic to Madagascar, and these species of lemur are the smallest primates in the world. Mouse Lemurs are considered a cryptic species complex, meaning that there are very little physical differences in the different species, however as a whole they have a lot of diversity in their genes. Recent studies have shown that one key noticeable difference in the species of Mouse Lemurs are the various mating calls each species makes. Many species of Mouse Lemur are endangered because they often make most of their housing and protection in trees, and habitat loss and the destruction of the forest has left some species critically endangered.

Taxonomic Breakdown:

Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Primates Suborder: Strepsirrhini Family: Cheirogaleidae Genus: Microcebus  

Conservation & Helping:

While some species of Mouse Lemur are least concern, the majority are either vulnerable or endangered. Mouse Lemurs and Lemurs as a whole have been noted to be some of the most endangered animals of all vertebrates. Habitat Loss and Human Interaction are two of the biggest threats to the many species of Mouse Lemurs.

For Teachers and Educators


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