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Female rats wiggle their ears when they are in heat, to excite male rats and encourage them to mate. [4] Ear wiggling was a shtick in Hal Roach comedies such as Laurel and Hardy and Our Gang. To achieve this effect, performers such as Stan Laurel would have their ears pulled by threads which would not be visible in the film. [5]
Nasodigitoacoustic syndrome, also called Keipert syndrome, is a rare congenital syndrome first described by J.A. Keipert and colleagues in 1973. The syndrome is characterized by a misshaped nose, broad thumbs and halluces (the big toes), brachydactyly, sensorineural hearing loss, facial features such as hypertelorism (unusually wide-set eyes), and developmental delay.
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Ear anomalies include extra openings in front of the ears, extra pieces of skin in front of the ears (preauricular tags), or further malformation or absence of the outer ear . Malformation or absence of the middle ear is also possible, individuals can have mild to profound hearing loss.
Defects affecting the external ear such as the auricle results from malformation or suppression of the auricular hillocks, which are small swellings on the embryonic visceral arches or the beginnings of the external ears; the small swellings are derived from the first and second pharyngeal arches. Because the ears and the kidneys develop ...
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Protruding ear, otapostasis or bat ear is an abnormally prominent human ear. It may be unilateral or bilateral. The concha is large with poorly developed antihelix and scapha. It is the result of malformation of cartilage during primitive ear development in intrauterine life. [1] The deformity can be corrected anytime after five years of age.
Macrotia refers to an ear that is larger than would be expected. [1] The normal auricular axis length is 58–62 mm (2.3–2.4 in) among females and 62–66 mm (2.4–2.6 in) among males. [ 2 ] The average width of an adult ear, specifically the distance between the helix root (inner front edge) and the posterior auricle (outer front edge), is ...