AYE-AYE-AYE Cont. from
page 3.
modified quadrupedal locomotion, but the former
has a
large, additional component of climbing and falling. They
have often been observed plummeting downward
through the leaves in a seemingly-purposeful fashion,
arresting their fall at the last possible second by
extending their long, slender, wirelike third digits and
grasping a narrow branch. Several primatologists have
sustained heart irregularities while watching this odd
behavior.
Macropithecus
exhibits a greatly reduced dentition,
having a dental formula of 1-0-1-3/1-0-0-3. Daubentonia
on the other hand has a dental formula of 1-0-1-3/1-0-0-3.
The morphological specializations and dentition of the
aye-aye-aye seem admirably suited to its dietary needs,
which are satisfied generally by larvae and grubs. In
comparison, the aye-aye subsists mostly on grubs and
larvae. Both of these queer-looking and unrelated
primates have gigantic, batlike ears, sharp, rodentlike
incisors that continue growing throughout the animal's
lifetime, lemuroid auditory bullae, globular braincases,
shaggy fur, clawed digits, and bushy tails. Like the aye-
aye, the aye-aye-aye occupies the approximate ecological
niche of a woodpecker, using its long, skeletal third finger
in place of the woodpecker's beak.
The aye-aye-aye
bears a striking but completely
coincidental resemblance to the aye-aye in that it has a
grooming claw on the second digit of the foot and a flat
nail on the hallux, facial vibrissae, a post-orbital bar in the
skull, a well-developed nasal rhinarium, a pair of inguinal
mammae, a reflecting tapetum lucidum, and a bicornuate
uterus.
But these are just
a few examples of coincidence, or
convergent evolution, or something. And really, there is
absolutely no relationship between the aye-aye-aye and
the aye-aye. Really, there isn't. No, there isn't! Isn't
either!! Isn't isn't isn't!!!
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