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Lost one this Morning
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<blockquote data-quote="J Hoy" data-source="post: 1756129" data-attributes="member: 16398"><p>Since a large number of species of mammal, including equines, ruminants, camelids, canines, felines and children and many species of bird began being born with underdeveloped facial bones (either upper facial bones or the lower jaw forward of the premolars in mammals) in spring of 1995, the hypothesis of my colleagues and myself is that there was a very serious environmental factor that began causing the epigenetic change in facial bone development. At one point in the last 27 years, the prevalence of underbite on the examined wild ruminants was over 50%, but in 2014, something about the environmental factors changed so the underbite prevalence in most mammals and birds went down. The primary incorrect point of your hypothesis is that the disrupted facial bone development (underbite or overbite) has been shown by studies to be epigenetic, not genetic. The genes of the affected animals were not changed, the triggers that turn on or off certain genes are disrupted. There is no possible way for so many species to suddenly have the same genetic effect at the same time. Studies done prior to 1995 showed that there was almost no overbite and no underbite at all in wild ruminant populations prior to 1995.</p></blockquote><p></p>
[QUOTE="J Hoy, post: 1756129, member: 16398"] Since a large number of species of mammal, including equines, ruminants, camelids, canines, felines and children and many species of bird began being born with underdeveloped facial bones (either upper facial bones or the lower jaw forward of the premolars in mammals) in spring of 1995, the hypothesis of my colleagues and myself is that there was a very serious environmental factor that began causing the epigenetic change in facial bone development. At one point in the last 27 years, the prevalence of underbite on the examined wild ruminants was over 50%, but in 2014, something about the environmental factors changed so the underbite prevalence in most mammals and birds went down. The primary incorrect point of your hypothesis is that the disrupted facial bone development (underbite or overbite) has been shown by studies to be epigenetic, not genetic. The genes of the affected animals were not changed, the triggers that turn on or off certain genes are disrupted. There is no possible way for so many species to suddenly have the same genetic effect at the same time. Studies done prior to 1995 showed that there was almost no overbite and no underbite at all in wild ruminant populations prior to 1995. [/QUOTE]
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