Subscribe Now! National Geographic Magazine $15
Visit our Online Shops

Sign up for free

Newsletters

Once a month
get new photos
and expert tips.

Aye-Aye
Daubentonia madagascariensis

Photo: Aye-aye close-up
Close-up of an aye-aye
Photograph by Dani Jeske/Animals Animals-Earth Scenes

Aye-Aye Profile

Aye-ayes can be found only on the island of Madagascar. These rare animals may not look like primates at first glance, but they are related to chimpanzees, apes, and humans.

Aye-ayes are dark brown or black and are distinguished by a bushy tail that is larger than their body. They also feature big eyes, slender fingers, and large, sensitive ears. Aye-ayes have pointed claws on all their fingers and toes except for their opposable big toes, which enable them to dangle from branches.

Aye-ayes spend their lives in rain forest trees and avoid coming down to earth. They are nocturnal, and spend the day curled up in a ball-like nest of leaves and branches. The nests appear as closed spheres with single entry holes, situated in the forks of large trees.

While perched aloft, the aye-aye taps on trees with its long middle finger and listens for wood-boring insect larvae moving under the bark. It employs the same middle finger to fish them out. The digit is also useful for scooping the flesh out of coconuts and other fruits that supplement the animal's insect diet.

Many people native to Madagascar consider the aye-aye an omen of ill luck. For this reason they often have been killed on sight. Such hunting, coupled with habitat destruction, have made the aye-aye critically endangered. Today they are protected by law.

Fast Facts

Type: Mammal
Diet: Omnivore
Average lifespan in captivity: 20 years
Size: Head and body, 14 to 17 in (36 to 43 cm); Tail, 22 to 24 in (56 to 61 cm)
Weight: 4 lbs (2 kg)
Did you know? Aye-ayes are the only primates thought to use echolocation to find prey.
Protection status: Endangered
Size relative to a 6-ft (2-m) man:
Illustration of the animal's relative size

Multimedia

Primate Features

Photo: Tarsier

Night Shift

Southeast Asia is home to a menagerie of nocturnal creatures. Learn what goes bump in the night in this feature.

Photo: Mouse lemur

Living Laboratory

See how 60 million years of isolation has shaped the incredible ecosystem of Madagascar in this feature.

How You Can Help

Other Primates

Map: Locator map for the aye-aye
 Aye-Aye range

Special Advertising Sections

Photo: Reflection on Yellowstoen Lake, Yellowstone National park

Photo Contest

Share your shots and you could win a trip to the Grand Canyon!

Photo: Valero train

Interactive Map

Explore unique solutions to the world’s biggest challenges.

Mammals Right Rail

Get the Latest Headlines

Photo: Grizzly bears

Make us your online news source.

Get Animal Pictures

Photo: Lion yawning

Get your daily dose of photos.

For Kids!

Photo: A cartoon dog

It's no stretch to find fun facts on our Kids site!

Dog Whisperer DVDs & Books

Photo: Dog Whisperer DVD cover

Be a pack leader. Check out our newest Dog Whisperer DVDs and books.

Six Degrees Book and DVD

Image: Six Degrees DVD and book

Get an eye-opening warning of the dangers of climate change, one degree at a time.