Aye Aye Classification and Evolution
The Aye Aye is a species of 
Lemur that is found inhabiting the 
rainforests of Madagascar. The Aye Aye is not only the largest 
nocturnal
 primate in the world but is also one of the most unique and is in fact 
so strange in appearance, that it was thought to be a large species of 
Squirrel when it was first discovered. In the mid 1800s the Aye Aye was finally recognized as being a species of 
Lemur but was classified in a group of it's own as their closest 
Lemur relatives remain a mystery even today. However, these incredibly unique 
animals are severely threatened throughout much of their natural 
habitat
 and were thought to be on the brink of extinction by 1980, primarily 
due to them being killed instantly by local people who believe that 
seeing an Aye Aye is very bad luck. Although today population numbers 
seem to have risen, the Aye Aye is one of Madagascar's most endangered 
animal species.
Aye Aye Anatomy and Appearance
The Aye Aye is a primate that is most closely related to 
Lemurs but is one of the most unique 
animals
 on the planet due the fact that it possesses a number of very distinct 
adaptations. Their body and long tail are covered in coarse, shaggy 
black or dark brown fur with a layer of white guard hairs that helps 
them to blend into the surrounding forest in the dark. The Aye Aye has 
very large eyes on it's pointed face, a pink nose and rodent-like teeth 
with incisors that grow continuously to ensure that they never become 
blunt. Their large rounded ears are incredibly sensitive giving the Aye 
Aye excellent hearing when listening for grubs beneath the tree bark and
 are able to be rotated independently. The Aye Aye has long and bony 
fingers with sharp pointed claws on the ends to help when dangling from 
branches, but it is the middle fingers on their front feet which are 
their most distinctive feature. Much longer than the others, these 
fingers are opposable with a double-jointed tip and a hooked claw on the
 end and are used for both detecting grubs in dead wood and then 
extracting them.
Aye Aye Distribution and Habitat
Historically, the Aye Aye inhabited the coastal forests of eastern and 
north-western Madagascar but by 1983 they were thought to be almost 
extinct with only a few scattered individuals known to still be found 
there. Since then their population numbers have increased and although 
these populations aren't favourably big, they are found in an increasing
 number of locations and in a variety of different forest 
habitats. The Aye Aye prefers dense, tropical and coastal 
rainforest
 where there is plenty of cover but they are also known to inhabit 
secondary forest, bamboo thickets, mangroves and even coconut groves 
along the eastern coast of Madagascar. However, along with the 
persecution of the Aye Aye by local people they are severely threatened 
in their natural environment by 
habitat loss. 
 
Aye Aye Behaviour and Lifestyle
The Aye Aye is a 
nocturnal and arboreal 
animal
 meaning that it spends most of it's life high in the trees. Although 
they are known to come down to the ground on occasion, Aye Ayes sleep, 
eat, travel and mate in the trees and are most commonly found close to 
the canopy where there is plenty of cover from the dense foliage. During
 the day Aye Ayes sleep in spherical nests in the forks of tree branches
 that are constructed out of leaves, branches and vines before emerging 
after dark to begin their hunt for food. The Aye Aye is a solitary 
animal
 that marks it's large home range with scent with the smaller territory 
of a female often overlapping those of at least a couple of males. Male 
Aye Ayes tend to share their territories with other males and are even 
known to share the same nests (although not at the same time), and can 
seemingly tolerate each other until they hear the call of a female that 
is looking for a mate.
Aye Aye Reproduction and Life Cycles
It was previously thought that the Aye Aye had a very strict breeding 
season (in the same way as other Lemurs) when they actually seem to 
breed throughout the year, depending on the when the female comes into 
season. When a female is ready to mate she calls to male 
Lemurs
 who are known to gather around her and will fight aggressively between 
one another for breeding rights. After a gestation period that lasts for
 about five months, a single infant is born and spends it's first two 
months in the safety of the nest, not being weaned until it is at least 7
 months old. Young Aye Ayes will remain with their mother until they are
 two years old and leave to establish a territory of their own. A female
 Aye Aye is thought to be able to start reproducing when she is between 3
 and 3.5 years old where males seems to be able to do so at least 6 
months earlier.
Aye Aye Diet and Prey
The Aye Aye is an omnivorous 
animal that feeds on both other 
animals
 and plant matter, moving about high up in the trees and under the cover
 of night. Males are known to cover distances of up to 4km a night in 
their search for food, feeding on a variety of fruits, seeds, 
insects
 and nectar. They are however specially adapted to hunt in a very unique
 way as they use their elongated middle finger to tap dead wood in 
search of the hollow tunnels created by wood-boring grubs, listening for
 even the slightest sound with their sensitive bat-like ears. Once the 
Aye Aye has detected it's 
prey
 it uses it's sharp front teeth to gnaw a hole into the wood before 
inserting the long middle finger, hooking the grub with it's claw and 
extracting it (filling the same ecological niche as a Woodpecker). The 
Aye Aye is also known to use this long digit to eat eggs and coconut 
flesh and is thought to be the only primate to use echolocation when 
searching for food.
Aye Aye Predators and Threats
The secretive and tree-dwelling lifestyle of the Aye Aye means that it actually has very few natural 
predators in it's native environment, with the agile and equally 
nocturnal Fossa being their most ferocious natural 
predator (along with 
Birds of 
Prey and 
Snakes that hunt the smaller and more vulnerable young). 
Humans
 are in fact the biggest threat to the Aye Aye as populations have been 
obliterated in much of their native forests due to superstition from 
local people who believe that it is a bad omen to see one. In other 
areas where they are not feared in this way, the Aye Aye is hunted as 
bushmeat. The biggest threat however to current populations is 
habitat loss caused both by deforestation and growing 
Human settlements that encroach on the Aye Aye's natural 
habitat.
Aye Aye Interesting Facts and Features
Although the Aye Aye is a solitary 
animal,
 males have very loose territories that can overlap those of a number of
 others. They build their nests high in the trees and will rarely sleep 
in the same one two nights in a row which means that one territory can 
contain numerous nests, with up to six thought to be found in just one 
tree. The Aye Aye is thought to be one of the creepiest creatures in the
 world with it's name believed to have come from the cry of alarm when a
 person spotted one. Despite now being found in more areas of it's once 
vast range, Aye Aye population numbers were once so low that they were 
actually thought to be extinct in the wild until 1957 when they were 
rediscovered.
Aye Aye Conservation Status and Life Today
Today, the Aye Aye is listed by the IUCN as an 
animal
 that is Endangered meaning that it is severely threatened from possible
 extinction in the near future. Numbers have increased somewhat since 
the 1980s and small populations have been sighted in more areas of their
 natural range however, they are still greatly threatened by the 
Human
 activity going on around them. A number of captive populations can be 
found around the world in breeding programs to try and save the Aye Aye 
from complete extinction. A small population can also be found on the 
island of Nosy Mangabe, which is a protected reserve just off 
Madagascar's north-east coast.