The hairy-eared dwarf lemur is one of the smallest primates with a weight of only 80 to 100 g (3 -3.6 oz) and a length of 30 cm. It has a galago-like ear. This could mean that it is, together with other cheirogalieds, more closely related to the galagos and lorises than to the lemurs. This species has a relatively longer tongue than the Microcebus and Cheirogaleus specie. The overall pelage color for Hairy-eared Dwarf lemur is gray. It has a brown tail and a face with a white stripe running from the rostrum or nose to between the eyes as well as dark rings surrounding its eyes. Its ears have tufts of brown while its teeth structure and claws are sharp.
It was observed in captivity that males and females tend to groom each other by removing dead skin and parasites before leaving their nest at night. The hairy-eared dwarf lemur leaps frequently among branches of trees, they have been observed to leap more often than members of the genera Cheirogaleus and Microcebus.
Interestingly, the hairy-eared dwarf lemur is one of the world's rarest mammals. This species was assumed to be extinct because no specimen had been seen from 1875 until 1966. It was rediscovered in 1966 on the east coast of Madagascar near Mananara. In 1989, two live members were found in the same vicinity, south of the Mananara River. As of 1997, it was still known only from eastern Madagascar near Mananara. The status has been changed from Critically Endangered to Endangered in 1996 due to the discovery of new subpopulations.
The hairy-eared dwarf lemur is trapped and eaten by local inhabitants. Deforestation of its habitat for agriculture and logging is also another reason why it has decreased in population.
The Hairy-eared dwarf lemur is listed as Endangered (EN), considered to be facing a very high risk of extinction in the wild, on the IUCN Red List of Threatened Species