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Close-up of an aye-aye
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.
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:
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