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A molera (also known as a fontanel) is a "soft spot" on the top of a Chihuahua's skull; it is the equivalent to the bregmatic or anterior fontanelle in human babies, but unlike most mammals Chihuahua's fontanelle persist into maturity. Historically it has been very common amongst Chihuahuas and was regarded as a mark of purity for this ...
An open fontanelle, known as a molera, is a recognized feature of the Chihuahua breed. The American Kennel Club breed standard states that the skull of the Chihuahua should be domed, with or without the molera being present. [ 13 ]
Chihuahua breed standards specify an "apple-head" or "apple-dome" skull conformation. [13] Chihuahuas occur in virtually any color combination, from solid to marked or splashed. [14] Apple-dome Chihuahuas have large, round eyes and large, erect ears, set in a high, dramatically rounded skull. [15]
Molera (hole in skull), better known as an open fontanelle, may be a sign of hydrocephalus, but is also a normal finding in toy breeds such as Chihuahua. [181] Anal gland problems are very common, and may include impaction, infection, or abscessation. These glands are normally emptied when the dog defecates.
The domestic dog compared to the wolf shows the greatest variation in the size and shape of the skull (Evans 1979) that ranges from 7 to 28 cm in length (McGreevy 2004). Wolves are dolichocephalic (long-skulled) but not as extreme as some breeds of dogs, such as greyhounds and Russian wolfhounds (McGreevy 2004).
Symbols of Chihuahua City This page was last edited on 11 October 2024, at 07:00 (UTC). Text is available under the Creative Commons Attribution-ShareAlike 4.0 ...
Various aged naked mole-rats. The naked mole-rat (Heterocephalus glaber), also known as the sand puppy, [6] is a burrowing rodent native to the Horn of Africa and parts of Kenya, notably in Somali regions. [1]
Neoteny and reduction in skull size – grey wolf and chihuahua skulls. When the role of dogs expanded from just being working dogs to also being companions, humans started selective breeding dogs for morphological neoteny, and this selective breeding for "neoteny or paedomorphism" "strengthened the human-canine bond."