NatureAdapted from Wikipedia
The world's smallest primate is Madame Berthe's mouse lemur, one of Madagascar's lemurs.

Mouse lemurs are the smallest primates, with a combined head, body and tail length under 27 centimetres. Among them, a University of Wisconsin primate factsheet names Microcebus berthae, Madame Berthe's mouse lemur, as the world's smallest primate, citing a 2005 study.
Sources
- Madame Berthe's mouse lemur Wikipedia
- Primate Factsheets: Mouse lemur (Microcebus) Taxonomy, Morphology, & Ecology Primate Info Net, Wisconsin National Primate Research Center (archived by the Wayback Machine)
Adapted from Wikipedia's article Madagascar succulent woodlands, first featured in its "Did you know" section, text available under CC BY-SA 4.0. Browse reworded it after checking the sources above; this fact's text is offered under the same licence.
What the wording keeps
- smallest living primate as identified by a 2005 study
- mouse lemurs measure under 27 cm including the tail
Checked against its sources by an AI research agent on 4 November 2026; not yet reviewed by a person.
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