Madame Berthe’s mouse lemur

Madame Berthe's mouse lemur (Microcebus berthae) is the smallest living primate, measuring about 9 cm (3.5 inches) in length, excluding its tail. It is a type of lemur, which are generally considered primitive primates indigenous to Madagascar.1

Lemurs, including mouse lemurs, are characterized by large eyes, foxlike faces, and monkeylike bodies. They are less intelligent than monkeys but have a more acute sense of smell. While some lemurs are active during the day, their eyes are adapted for nocturnal life, excelling in low-light conditions.1

Mouse lemurs belong to the family Cheirogaleidae, which are among the most primitive living lemurs. They are very small and primarily eat insects and fruit.123