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  3. Aye-aye

Mammals · Primates · Daubentoniidae

Aye-aye

Daubentonia madagascariensis

Endangered

At very high risk of extinction in the wild in the near future.

Spotted something wrong?

It is the largest nocturnal primate in the world, and has an extremely thin third finger it uses to tap on wood and locate grubs hidden inside by percussive echolocation, then hook them out with that same finger.

Weight

2.3 kg – 2.6 kg

Size

30 cm – 44 cm

Life expectancy

23 years

Diet

Omnivore

Combines animal and plant food depending on availability.

Activity

Nocturnal

Active mainly at night.

Social structure

Solitary

Lives and hunts alone, joining others only to breed.

Sighting difficulty

Hard

Rainforest
1countries10parks

Fun facts

  • It is the largest nocturnal primate in the world.
  • Its extremely thin middle finger finds grubs in wood by tapping, and then hooks them out.
  • In parts of Madagascar it is the subject of superstitions that have historically led to its persecution.
  • anatomíaIts middle finger is shaped for tapping wood and detecting hidden cavities by the echo, locating grubs it then hooks out with that same elongated finger.
  • anatomíaIts incisors grow continuously throughout its life, a trait unique among primates and more typical of rodents.

Life cycle and biology

Skeleton type
Vertebrate - internal bony skeleton (mammal)
Habitat and environment
A wide range of Madagascan forest: primary and secondary rainforest, deciduous woodland, plantations and mangrove
Birth weight
90 - 140 grams
Size at birth
Undeveloped at birth, sheltered in a tree nest for its first 2 months
Sexual maturity
2-3.5 years
Gestation / incubation
157-172 days (~5-5.5 months)
Litter / clutch size
1 young, with an interval between births of 2-3 years
Life expectancy in captivity
Documented record of up to 23.3-32.3 years in captivity

Sources consulted: Denver Zoo Conservation Alliance; AnAge; Animal Diversity Web; Know Your Mammals; New England Primate Conservancy; Animalia.bio; A-Z Animals; Duke Lemur Center; SDZWA Library Fact Sheet

Where to find it

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The pins mark the parks where its presence is documented.

Where to see it

Parks and dive sites where this species has been documented.

Related species

Other species in the catalogue with the most in common with Aye-aye — same habitat, park, country, tags or family.

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How to help

The aye-aye is classified as endangered. Organisations such as the IUCN, WWF and the Wildlife Conservation Society work specifically on its conservation and that of its habitat; looking into their programmes is a good starting point if you want to get involved.

It's documented in 8 protected areas — one reason why protecting these places matters for its conservation.

Keep exploring

Based on what we already know about aye-aye.

Comments

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See full glossary
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See its range on the interactive map→
Andasibe-MantadiaMadagascar
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AndohahelaMadagascar
AndringitraMadagascar
AnkarafantsikaMadagascar
MarojejyMadagascar
MasoalaMadagascar
Montagne d'AmbreMadagascar
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Microcebus rufus

CountriesMadagascar
ParksAndasibe-MantadiaMadagascar
TagsOmnivore
Omnivore
Nocturnal
Solitary
Endangered
Rainforest
Mammal
Madagascar