Editing Aardvark (section)

===Head===
The greatly elongated head is set on a short, thick neck, and the end of the snout bears a disc, which houses the nostrils. It contains a thin but complete [[zygomatic arch]].<ref name=UR1/> The head of the aardvark contains many unique and different features. One of the most distinctive characteristics of the Tubulidentata is their [[Tooth|teeth]]. Instead of having a [[pulp (tooth)|pulp cavity]], each tooth has a cluster of thin, hexagonal, upright, parallel tubes of vasodentin (a modified form of [[dentine]]), with individual pulp canals, held together by [[cementum]].<ref name=UR/> The number of columns is dependent on the size of the tooth, with the largest having about 1,500.<ref name=UR2/> The teeth have no [[Tooth enamel|enamel]] coating and are worn away and regrow continuously.<ref name=sho1/> The aardvark is born with conventional incisors and [[canine tooth|canines]] at the front of the jaw, which fall out and are not replaced. Adult aardvarks have only cheek teeth at the back of the [[jaw]], and have a [[dentition|dental formula]] of: {{DentalFormula|upper=0.0.2-3.3|lower=0.0.2.3}} These remaining teeth are peg-like and rootless and are of unique composition.<ref>{{harvnb|Martin|1983|p=377}}</ref> The teeth consist of 14 upper and 12 lower jaw molars.<ref name=Colliers/> The nasal area of the aardvark is another unique area, as it contains ten [[nasal concha]]e, more than any other placental mammal.<ref name=UR/>

The sides of the nostrils are thick with hair.<ref name=UR1/> The tip of the snout is highly mobile and is moved by modified [[mimetic muscles]].<ref name=UR/> The fleshy dividing tissue between its nostrils probably has sensory functions,<ref name=EoM/> but it is uncertain whether they are olfactory or vibratory in nature.<ref name=UR6>{{harvnb|Rahm|1990|p=458}}</ref> Its nose is made up of more [[turbinate]] bones than any other mammal, with between nine and 11, compared to dogs with four to five.<ref name=sho1/> With a large quantity of turbinate bones, the aardvark has more space for the moist [[epithelium]], which is the location of the olfactory bulb.<ref name=sho1/> The nose contains nine [[olfactory bulb]]s, more than any other mammal.<ref name=UR1/> Its keen sense of smell is not just from the quantity of bulbs in the nose but also in the development of the brain, as its olfactory lobe is very developed.<ref name=UR2>{{harvnb|Rahm|1990|pp=453–454}}</ref> The snout resembles an elongated pig snout. The mouth is small and tubular, typical of species that feed on [[ant]]s and [[termite]]s. The aardvark has a long, thin, snakelike, protruding tongue (as much as {{convert|30|cm|in}} long)<ref name=Colliers/> and elaborate structures supporting a keen [[olfaction|sense of smell]].<ref name="TaylorSkinner">{{harvnb|Taylor|Skinner|2004|p=106}}</ref> The ears, which are very effective,<ref name=Colliers/> are disproportionately long, about {{convert|20|-|25|cm|in}} long.<ref name=UR1/> The eyes are small for its head, and consist only of [[rod cell|rods]].<ref name=UR1/>