The Canadian Encyclopedia — neutral, cited, updated
July 26, 2026Sources cited
Canadianwire.
Canada’s encyclopedia & explainer
HomeScience & NatureAnimalAye-aye
Science & Nature • Animal

Aye-aye

The aye-aye (*Daubentonia madagascariensis*) is a nocturnal lemur and strepsirrhine primate native to Madagascar.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

The aye-aye (Daubentonia madagascariensis) is a nocturnal lemur and strepsirrhine primate native to Madagascar. It is the only living member of the family Daubentoniidae and is known for its long middle finger, large ears, and unusual foraging behaviour.

Taxonomy and classification

The aye-aye is a lemur in the primate order and is placed in the family Daubentoniidae. It is the sole living representative of that family.

Physical characteristics

Aye-ayes have large ears, a bushy tail longer than the body, and unusually elongated fingers, especially the middle finger. Sources describe them as around 14 to 17 inches in head-and-body length, with tails up to about 24 inches.

Habitat and distribution

The species is endemic to Madagascar, where it lives in forested habitats and spends most of its life in trees. It is rarely seen on the ground.

Behaviour and diet

Aye-ayes are nocturnal and forage at night for insects, fruit, nectar, seeds, and other foods. They are especially known for tapping on wood and extracting larvae from trees.

Conservation

The aye-aye is listed as Endangered by conservation sources cited in the search results. Its survival is affected by habitat loss and other pressures on Madagascar's forests.

Key facts

  • Aye-ayes are lemurs and therefore primates, not rodents.
  • They are native to Madagascar and are found only there.
  • They are active at night and spend much of their time in trees.
  • They are known for using a long, thin middle finger to forage for insects and larvae.
  • They are the sole living species in the family Daubentoniidae.
🍁
Canadian context

Aye-ayes are of interest to Canadian readers through zoo education, wildlife conservation, and comparative biology, especially because they are a primate species found only in Madagascar.

Frequently asked questions

What is an aye-aye?
Aye-aye is a species of nocturnal lemur and primate native to Madagascar.
Where do aye-ayes live?
They live only in Madagascar, mainly in forest habitats.
What do aye-ayes eat?
They eat insects and larvae, and also consume fruit and other plant foods.
Why are aye-ayes unusual?
They have a very long middle finger used for foraging and are active at night in the treetops.
Are aye-ayes endangered?
Yes. Sources in the search results describe the species as Endangered.

References

  1. National Geographic Kidshttps://kids.nationalgeographic.com/animals/mammals/facts/aye-aye
    Supports: Common name, scientific name, diet, nocturnal behaviour, Madagascar range, primate classification, and size/life span details.
  2. Encyclopaedia Britannicahttps://www.britannica.com/animal/aye-aye
    Supports: Taxonomic description as a rare primate from Madagascar and sole living representative of Daubentoniidae.
  3. Duke Lemur Centerhttps://lemur.duke.edu/discover/meet-the-lemurs/aye-aye/
    Supports: Largest nocturnal primate description and general physical characteristics.
  4. New England Primate Conservancyhttps://neprimateconservancy.org/aye-aye/
    Supports: Endangered status, nocturnal lifestyle, size, tail length, diet, and range notes.
  5. University of Texas at Austinhttps://www.esi.utexas.edu/files/075-Learning-Module-What-is-an-Aye-Aye.pdf
    Supports: Madagascar endemism, forest habitat, and primate relationships.